Comment Same-screen multiplayer; carrying three tablets (Score 1) 99
If the XBox or Playstation were open they would just be pretty average, overpriced PCs. But we already have PCs so why would we want that?
People who want a box whose industrial design doesn't stick out like a sore thumb next to a television. People who play games other than FPS and RTS, games whose multiplayer mode uses one screen and up to four gamepads, such as platformers, fighting games, and rhythm games. Multiplayer PC games, on the other hand, have tended to require a separate computer, monitor, OS license, and game license per player.
Why not get an already available Linux tablet?
Because there weren't credible Linux tablets between the release of the original iPad and the release of the Xoom, just as there weren't any credible Linux smartphones between the release of the original iPhone and the release of the HTC Dream. This, combined with delayed availability of Google Checkout (now Google Wallet) in some countries, caused people to end up with a collection of purchased applications and movies that don't transfer to anything but an iPad. Besides, it appears you would prefer having to buy three tablets and carry all three everywhere you go: an iPad for running iOS-exclusive applications, a Surface RT for running Windows Store-exclusive applications, and something else for running Linux-exclusive applications.
realistically we have open alternatives to pretty much everything already.
So what are the open alternatives to AAA games? U.S. copyright law hasn't been as kind to cloners of games (Tetris v. Xio) as it has been to cloners of libraries (Oracle v. Google) and cloners of business applications (Lotus v. Borland).