MXTube app has been released for iPhone which allows you to download the youtube videos. It has an interface like Apple’s YouTube app. Current Features being :
- YouTube style search
- Saving of videos for playback at a later time (a noteworthy feature)
- no encoding- direct download
- video quality selection
- downloads continue when suspended
Its a great app and works on Edge, 3G and wifi. More info at http://www.mxweas.com/
Where and how to download it?
Launch Cydia on your iPhone, search for MxTube, install it and boom! All the videos available on YouTube (mobile content) for your viewing pleasure!