With TubeTilla you can easily download your favorite YouTube videos and convert them to MP3 and MP4 format in three easy steps.

TubeTilla converts YouTube videos to WMV, MP4, and MP3. You can then play these formats on your PSP, iPod, iPhone, Zune and with Windows Media Player. To use it just copy the link of the video into TubeTilla interface and the program then automatically converts everything to Mp3, WMV or Mp4 format.

For some reason however, the developer has not allowed users to convert to formats other than these, such as AVI or MPG. Previous versions of TubeTilla were subject to frequent bugs and crashes, but in this latest version it's much more stable. The big plus of this app of course is that it automatically converts as it downloads so it saves you a lot of time when your clips is on your hard drive.

TubeTilla is a solid attempt at an integrated YouTube downloader and converter in one although it could do with a few more conversion formats adding.