Click to enlarge
There are 2 Pop up player like on Samsung galaxy S3 now available on Google Play, one is free and the other one spayed. Stick It HERE, but is not free it's 1,49 euro and Super Video floating free.
Super Video, Floating! The Best Popup Video Player.
Full Popup Floating Video with re-size, move window, two multi-windows play-back. Better operation experience, support subtitle and FREE in the popup video technique.
This is a floating popup player, not video decoder player. The playable file format depends on your hardware. It means if your hardware cannot play RM, RMVB, FLV, MKV ..etc. Our software also cannot play the formats. Read More for video.
The "Super Video, Floating!" is an innovation video playback software for Android OS. It has a pop-up floating window system that can show the video on the top of your screen. In other words, you can watch your video content in any application. You can watch the video and do something else at the same time!
Update: I just tested the Super Video Floating player on Samsung Galaxy S2 and is amazing! Is playing very smoothly ANY video format that your phone supports. I just "copy and paste" a movie from my PC, .AVI, and I played with the pop up player a little to see ho and what. There was a little lag when I first exit the program with the movie on the pop up window, but just that. After I managed to send SMS, call, play and everything you want to do while watching the movie with sound!! Very nice!