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Google App Engine lets you run web applications on Google's infrastructure. App Engine applications are easy to build, easy to maintain, and easy to scale as your traffic and data storage needs grow. With App Engine, there are no servers to maintain: You just upload your application, and it's ready to serve your users.

With iOS 4.3, Apple improved Mobile Safari via the implementation of the Nitro JavaScript engine, which is supposed to more than double the performance of JavaScript. Just how much are these improvements compared to Mobile Safari on iOS 4.2.1?

a huge 2.47x performance increase

Thanks to search engines, most simple facts don’t need to be remembered. They can be accessed with a few keystrokes, plucked from ubiquitous server-stored external memory — and that may be changing how our own memories are maintained. A study of 46 college students found lower rates of recall on newly-learned facts when students thought those facts were saved on a computer for later recovery.

One small but intriguing effect in the new study involved students who were less able to identify subtly manipulated facts, such as a changed name or date, when drawing on memories they thought were saved online.

1) Flash CS5 – At the moment is probably the most complete solution.  The packager for iOS allows you to compile apps on the windows platform.  If you’ve been using flash you can rejoice in Apple’s latest policy, it performs well, but don’t expect highest performance games, and Papervision to run in here.  No mac required. 2) Airplay SDK – The airplay SDK allows you to create games, and sign your app on Windows PC’s.  I have not tested this solution, but apparently many apps have been created this way. Both these solutions can compile to code that is native to the iPhone right on your windows PC and many apps available in the app store have been created using them. 3) Unity 3D – Game development engine and editor that utilizes Boo and C# and the editor works on both Windows and Mac. 4) Stonetrip S3D – Game develop engine and editor utilizing LUA, the editor runs within Windows. These game engines allow you to develop your apps on Windows, but you’ll need a Mac to test/compile. 3) Appcelerator Titanium – This is a good solution, and has a very popular and vibrant community.  Apps are limited in performance because while they can be compiled as native apps and sent into the app store they are html/javascript based. 4) Genuitec MobiOne – This is an interface designer that uses the Phonegap framework to deliver native functionality.  It only runs on windows.  HTML/Javascript based. These solutions allow you to create apps using web technologies (HTML/CSS/Javascript) and then run them through an Objective-C framework that responds to actions within a UIWebView, thus allowing you to access native functionality on the iPhone.  These frameworks are free. 5)Dragonfire SDK – An interesting option that allows you to develop apps using their SDK on windows.  Then you send them your uncompiled source which they compile and you download the compiled iOS application file.  I’ve been asked if this means they get a copy of your uncompiled source code.. I couldn’t tell you that, I just know that you have to upload your code for compiliation to their website — but hey you wanted to develop iPhone apps on Windows.  Overall this is a wrapper, I like the syntax and it’s pretty popular so I’ll mention it.

Vector-Finder.com is a Free Vectors & Stock Vector Images Search Engine, Search the most popular and commercial vector images (Shutterstock and Graphicriver) in a central place, where you can press the Most Downloads, Most Popular view, In the search results page Search Vector. You can also see the free and commercial loss plans, download and use the Free vector graphics at no charge.

The main reason why HTML5 is not the obvious choice for developers now is the above mentioned lockout when it comes to hardware. An iOS device does not allow different browser engines and does not allow HTML5 to access the camera, the address book, vibration, the phone or text messaging. In other words, everything that makes a mobile device interesting for developers and very necessary functionality for Apps,” Heilmann wrote.

"CK-12 basically looked at STEM [science, technology, engineering, and math] and broke it down into the 5,000 fundamental concepts, and they mapped them all together," Chakrapani says. "It's not about creating a textbook and every three years putting out a new edition so you can capture more revenue. It's about thinking how a student learns."

"And then you go back at the end of year with teachers, see what students struggle on, and revise and improve the book. Each year, the text gets better."

Free educational resources -- like a university course on Coursera, for example -- may be available for students to use at no cost, but students cannot reuse, remix, or repurpose that course content however they'd like. By contrast open-source materials like CK-12's materials are not only free, but can also be freely repurposed in any way a student or teacher sees fit.

A growing list of schools are turning to the "serendipity engine" to help students find cross-discipline collaborators for passion projects.

finding a cross-disciplinary collaboration is tougher--most of us are more likely to head to a meetup or networking event to fish for someone outside of our skill set. That’s fine, but it’s not a very efficient way to find exactly what you’re looking for.

with the launch of Wikitude 7 and Wikitude’s new ARchitect Engine, developers are now able to create AR gaming experiences using industry standard development tools such as HTML, Javascript, and CSS for Android and iOS platforms. These new tools are designed to target both existing AR developers and the games developers community.

Frequent use of mobile devices does not mean that students or instructors are ready for mobile learning and teaching

Wherever one looks, evidence of mobile penetration is irrefutable: cell phones, PDAs, MP3 players, portable game devices, handhelds, tablets, and laptops abound. No demographic is immune from this phenomenon. From toddlers to seniors, people are increasingly connected and are digitally communicating with each other in ways that would have been impossible only a few years ago.5

Consequently, it comes as no surprise that sooner or later people would begin to look for ways to integrate mobile computing into e-learning to make courses more accessible and portable. For example, Duke University made headlines when it provided all incoming freshmen with their own 20-gigabyte iPods. Similarly, the Virginia Tech College of Engineering became the first public institution to require all students to purchase a tablet PC beginning with incoming freshmen in fall 2006.

HTML5, which updates the HTML specification to accommodate modern Web applications, has gained a lot of adherents in vendors like Microsoft, Google, and Apple. But the specification is plain not ready yet for deployment to websites, an official with the World Wide Web Consortium (W3C), which oversees HTML5, stressed this week

The problem we're facing right now is there is already a lot of excitement for HTML5, but it's a little too early to deploy it because we're running into interoperability issues," including differences between video on devices

HTML5 is viewed as a "game changer." Companies now can deploy HTML5 in their applications or in intranets where a rendering engine can be controlled, said Le Hegaret. But it is a different story on the "open Web," where interoperability is an issue

In mobile browsers, you need to be especially careful about using timers because of the battery consumption. If you need to use many high-frequency timers at the same time, try to manage them using only one timer that will launch different behaviors from the same process.

The first question we need to ask ourselves is, what happens when our web page goes to the background because the user switches focus to another application (in multitasking operating systems) or opens or browses to another tab or window? Another problem is what happens when the phone goes to sleep (because of the user’s inactivity while the script is executing). The behavior of timers can be a little tricky in these situations.Yet another problem is that timers execute on the same thread as the main script. If our script is taking too much processor time (a normal situation with large scripts on low- and mid-end devices), our timers will be delayed until some spare execution time is found.If we use a low frequency for the timer (for example, 10 milliseconds), the timer will generally have problems meeting the timetable.Remember that the JavaScript execution time depends a lot on the device hardware and the browser’s engine. Even if they’re running the same operating system, like Android, execution times can differ: for example, an HTC G1 will be much slower than a Nexus One with a 1-Ghz processor.

As shown in Figure 4, the real times are very different on different devices. On low- and mid-end devices, if they work at all, the result is far from our 200 ms intention—some low-end devices don’t even accept timers with a frequency of less than 1 second.