From
http://www.ps3-game.com ... (
http://www.ps3-game.com/early-ps3s-t...2-hardware-113)
Gayly enough, this is a "feature" :
"contrary to earlier reports about software emulation, the PlayStation 3 will use a hardware solution in order to run PlayStation 2 games. It?s believed that the PlayStation 3 hardware in its current form not only features the new PS3 technology, but also the core components from the PlayStation 2 (Emotion Engine and Graphic Synthesizer)."