And, as shown by the work going on with Arduinos, it's not restricted to web applications. Hosted services such as Pusher (who I work for), Firebase and PubNub further lower the barriers to adding realtime functionality to web apps (even more options can be found on my Realtime Web Tech Guide). Quality open source projects, such as socket.io and SignalR (now part of ASP.NET), make this technology much more accessible. It would have been easy to choose Facebook, Twitter and Google+ as examples of great apps that use realtime web technology, but instead this top 10 covers a number of different - and interesting - use cases. You can read more about it in this blog post. I've never seen the atmosphere of an event affected in such a positive way by a hack experience created over two days. As they do so the audience can react in the mobile application by applauding and throwing flowers, or booing and throwing tomatoes. The play starts and the "actors" are presented with the lines to read out. The rest of the attendees became the audience, both by being present at the event and on an application running on their phone. Their avatars were taken from Twitter and displayed as the heads of characters and projected on a large screen, which was displaying a scene from the play in a browser window. The first four attendees to access a second screen app on their phone were picked to take a role in the William Shakespeare play, Macbeth (yep, Shakey = Shakespeare). The reason for this is that it got absolutely everybody at the event involved in a realtime web-powered interactive experience. And it's still one of the most exciting uses of realtime web technology that I've experienced. Shakey App was built at Culture Hack Scotland back in May 2012 by Jim Newbuery, Philip Roberts, P Ray Murray and Rory Fitzpatrick. It's also worth checking out Google's Realtime API which makes it possible to use the synchronising and operational transform capabilities used in Google Docs in your own apps.
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