Jott Express!

I really discovered Jott with the free iPhone app, but what I found out is that you can use it with any phone and there is also an Adobe Air app. Logging in on the website isn't really practical, but the Adobe Air app really completes the experience. It is entirely cross-platform and Jott is free when you only use it on the iPhone, the Adobe Air app and the website. More info about Jott here on Jott's website.