Last.fm’s iPhone application has been pretty popular, allowing users to stream their personalised music radio channels to their handset. Now it’s got a spiffing upgrade to version 2.0, with a host of new features.

The main change is the user interface, which has been made more intuitive. You can also tag the songs that you play on the iPhone, see calendar-based events, and enjoy a bunch of other improvements under the surface that make the app run better.

So far, the new version has been launched on the App Stores in the UK, US, Canada, Germany, Spain and France. It’s still free, making it one of the most appealing iPhone music applications.

App Store Link: Last.fm