Be careful of usage data connection! One video could be from 4Mb to unlimited size (depends on video length).
For watching ORT sometimes you will need multi-format video player like rockplayer or vplayer (for playing flv or xvid/divx content), depends on your device capability.
Not wasting your battery as others widgets. It use a standard Samsung TWLauncher feature for showing badges.
Ideally for Samsung Galaxy S, Samsung Galaxy S2 and Samsung Galaxy Note.