Sony is expected to go with chips from Advanced Micro Devices, rather than the Sony-IBM-Toshiba-developed Cell chip that’s in the PS3. That move could cause compatibility issues with current games.
The PS4 may be able to accommodate PS-3 games by streaming them.
Streaming could also help Sony go at least some way toward addressing the popularity of simple games on smartphones and other devices, reports C/Net. Sony bought Gaikai, a cloud-gaming firm, which may allow for the streaming of console games.