Store your PSP save data on PS3 with new firmware update
Version 3.65 available today.
Version 3.65 of the PlayStation 3's firmware, available today, has something special for PSP players. When you you have a PSP connected to the PS3, you'll be able to copy your PSP save data to the PS3. This will allow you to backup your PSP data, although its availability is dependent on the game.
The new firmware also has the usual stability fixes for PS3 software.