New for 1.92: Playability status with the PS3 system has changed for some PlayStation2 format titles. To check on the latest status, visit the search site for compatible titles (coming soon).
This the only search site we are aware of, but is there a new one in the way? The PlayStation blog seems to indicate so:
A search site for looking up compatible titles is also in the works, as soon as its live, Ill publish a link to it here.
The odd thing about the update was that the system never asked for the Sixaxis controller to be connected to the PS3 via a usb cable.
[Source: Sony PS3 Modding - Homebrew, Upgrades, Mods, and Hacks]