A fairly standard Android app for playing video–when it works it works, but it doesn’t play everything.
VPlayer (Old Version)
Plays divx files, is free, and doesn’t have ads. Can be laggy on occasion, but I can live with it.
Trial version seems to be indefinite and free, but displays ads over your video. Still, plays any number of video files, including divx (but not flv) with no lag. Has own file manager and does not pop up as an option if you play a video out of a different file manager
You know the drill.
YouTube Downloader Video Box
Download and watch your favourite YouTube videos!