You might remember the popular FIM (Facebook Instant Messaging) that has been around since the Windows Phone 6.x days and now the popular application that allows you to Facebook Chat on your phone has arrived to Windows Phone 7.

The application does not need registration and it is free in the Windows Phone 7 Marketplace as of it’s current, basic released version. The developer promises more in-app Facebook features to arrive in future versions and if the development will head down the same road as with the Windows Phone 6.x version, we can’t wait for future feature-packed releases.

Source: XDA Developers