Browserling is a new web service built upon the StackVM framework which allows virtual instances of operations systems to run right in your browser. Within this framework, they allow users to launch a number of browsers to test out their websites right in your browser. As of this writing they have support for Internet Explorer 5.5, 6, 7, 8 and 9, Firefox 3.5, Chrome 7, Opera 10.6 and Safari 5.0.
For mLearning, tags
have huge possibilities. They add depth and vitality to content in
ways that significantly enhance just-in-time access to information,
and improve understanding and performance.
Two major tag formats are getting the most attention right now,
and you can use both for mLearning: the QR tag format, and the
Microsoft tag format.
This shows the power of twitter, one posed a simple question "Which 5 Web 2.0 tools teachers are using in classrooms". A huge swell of support as hundreds of people have contributed. A great way of using Twitter!