The free app, dubbed Facebook, can be , or directly from users' mobile Web browser.

In addition to video and picture uploads, users can send messages or call people on their Friends lists, manage their Facebook profile, confirm Friend requests, update their status and more.

Another app, from the small Ohio developer Wugland, already enabled Windows Mobile users to upload pictures to Facebook, but not videos. And Thumblink is not free.

A version of Microsoft's Facebook app for the will be available later this year, according to a Microsoft press release.

Microsoft has a small stake in Facebook and a with the popular social network.