scottie on 12 June 2011
It runs into the same problems that Move/Kinect/GBA+GC have.
Game developers know that if they make design a game that requires such connectivity, or is hard to play without, they lose such a large fraction of the potential userbase. Adding a bit of functionality to a PS3 game isn't worth cutting your userbase down to less than 10 million, which will be about the sales of Vita when the PS4 is released
