In the past few months, I've been working on a Google Android campaign and was lucky enough to spend a very months testing out the product and the Android market. I'm a big fan of mobile applications (especially for the iPhone) and think that in the next few years we're going to see some revolutionary ones coming out.
Here is one of them:
We've posted about augmented reality before but to be honest, there aren't very many practical applications for it out yet. I love this one and if anyone knows if it's available for the iPhone, let me know the name.