Honestly, it depends on how a game was designed ...
Many of the PS3 and XBox 360 PC ports may be possible because the content was designed with its minimum requirements being a pretty modest laptop.
A game which was designed with the Wii as its minimum requirements (with enhancements to the PS3/XBox 360 version) would obviously be possible.
The problem will (always) be with games that were designed exclusively for the PS3 or XBox 360 (or were designed only with those systems in mind).







