Well at least acording to the german site inPlaystation.de
http://playstation.ingame.de/content.php?c=79310&s=429
Here is a rough translation using Google.
We have hot news for you! In a conversation between us and a Sony import dealer from the United States, which imported to Germany, we have learned that the 40GB version of the PS3 in October backward compatible with PS2 games. The whole aim via a firmware update from equip.
So said our contact man joking added that it now hold all 60GB models, which he is still in stock, should get rid of, because after publication of the firmware a significant loss of value would suffer. This sounds perfectly plausible, since many to a lot more expensive 60GB model only because of backward compatibility do what with the same functionality of the 40GB model would then be abolished.
On the question of how this technical page will look, we were assured that this will be "100% by software emulation" happen. According to the dealer, the firmware is planned for October, one hundred percent but he could not assure.
We also can not guarantee the accuracy of this message, but the fact that Sony recently announced, even PS2 games over the PSN distribute to want to make this a very likely.
We keep you on new information up to date.
