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Of course, oftentimes you don’t really want to tell all of your friends where you are, and even then you may only want them to be able to see your whereabouts for a short while. That’s where Glympse comes in. The service, which is based entirely around ‘sharing your where’ with select friends a few hours at a time, has just raised a $7.5 million Series B funding round led by Menlo Ventures and Ignition Partners.

Say, for example, you were running late for a meeting and wanted your coworkers to have a sense for when you’d be arriving at the office. Instead of having to send a series of text messages (“15 minutes..”, “traffic bad, make that 30 min”, and so on), you could just send a Glympse that let them track your progress on a map. Then, when you arrived, you could turn the Glympse off and the map would stop updating.

So where is Glympse going next? The company isn’t sharing much about its future plans, other than to say that they’re working with partners to integrate the product into “the everyday life experience”. In other words, expect them to move well beyond their own iPhone and Android apps in the near future.

Boring conversation? Accessories that decipher emotional cues could save your social life – or reveal that you're a jerk

The glasses can send me this information thanks to a built-in camera linked to software that analyses Picard's facial expressions. They're just one example of a number of "social X-ray specs" that are set to transform how we interact with each other. By sensing emotions that we would otherwise miss, these technologies can thwart disastrous social gaffes and help us understand each other better. Some companies are already wiring up their employees with the technology, to help them improve how they communicate with customers. Our emotional intelligence is about to be boosted, but are we ready to broadcast feelings we might rather keep private?

In a 10-day experiment in 2008, Japanese and American college students were given the task of building a complex contraption while wearing the next generation of jerk-o-meter - which by that time had been more diplomatically renamed a "sociometric badge". As well as audio, their badge measured proximity to other people.

Used to be if spies wanted to eavesdrop, they planted a bug. These days, it's much easier. Because we all carry potential bugs in our pockets—smartphones. One team of researchers used an iPhone to track typing on a nearby computer keyboard with up to 80 percent accuracy.

The researchers designed a malicious app for the iPhone 4. When you place the phone near a keyboard, it exploits accelerometer and gyroscope data to sense vibrations as the victim types—detecting whether keystrokes come from the left or right side of the keyboard, and how near or far subsequent keys are from each other. Then, using that seismic fingerprint, the app checks a pre-created "vibrational" dictionary for the most likely words—a technique that works reliably on words of three letters or more.

Mobile payments company Fortumo (which we’ve already covered in the past) unveiled cross-platform, HTML5-supported mobile payments, allowing developers to monetize users of mobile web apps in 60 countries, on any mobile device, with single integration.

The solution is praised to require “less clicks” relying on the data already stored on a device, ensuring for both better user experience and, well, more money for developers.

What’s more, thanks to operator billing capabilities it [solution] offers “strong alternative to credit cards,” especially in emerging markets.

Mobile handsets have a bad habit of oversharing with the networks they operate on, with some handsets being chattier than others. This signaling data, as it’s known in the industry, can congest mobile networks, and Traffix Systems, a six-year-old Israeli company wants to help operators solve that problem.

The company said Wednesday that it raised a first round of $7 million led by Bessemer Venture Partners to help it expand operations. Ben Volkow, the CEO, says that 60 percent of operators already have some Traffix gear on their networks to address and manage signaling traffic, but more operators are interested. As more operators began deploying LTE networks, which add to the complexity of signaling traffic and to the overall network, Volkow decided that his previous strategy of growing the business through bootstrapping it no longer made sense. “We needed to scale and grow the business,” he said in an interview.

Signaling traffic is the data the phone or device sends out to the network to tell it where it is, what is it is doing, how much it is allowed to do based on the subscriber’s plan and figure out when to hop to the next base station. Chetan Sharma, a wireless analyst, issued a report last year noting that network congestion is generally caused by two big things: (1) signaling traffic caused by smartphones and superphones and (2) peak data traffic caused by data cards and embedded laptops.