Personally I think for the next 6 months or so Sony can use the PS2 to compensate for the money lost while making each PS3. Lots of people have a PS2, it would be daft for Sony to just 'cut off' games for it in the hope more people would by a PS3. As a business it can use the PS2 as a 'little earner' until the PS3 has more games under its belt. My brother has a 360 (which in his words is a lot better than a PS3) but he is out trying to buy every half decent RPG being/been made on the PS2 known to man! I think the PS2 is comfortable for at least another year as a money making machine.
Good to see this site is still going