You can easily install an application on a jailbroken iPhone, but a few number of apps is really worth mentionning.

MxTube is simply destined to directly download and watch YouTube videos on your iPhone.
It combies stability & ease of use.
Even its icon is gorgeous!

To try it, just search “MxTube” on Installer and you’ll get it!
        

Posted in Apple Hardware, Freeware, Screenshots, iPhone, iPhone 3GS & iPhone 4