I have a Motorola Xoom, it is also the same size as your Samsung and I am extremely satisfied, I stream on it, both from the internet and from my NAS. I use it to run media from my NAS to the TV. Pretty much a complete media center. I also got a bluetooth keyboard which makes things really nice especially on matchdays while watching a game on TV.
The Xoom is quite robust and heavy so it feels good when the kids are playing with it.