The PSP will soon be able to use the DualShock 3 as a controller via the PS3.
Recently announced at the Tokyo Game Show, “PSP Plus” allows you to plug in the AV cable to the TV and connecting the PSP to the PS3 via USB; to play the game with the DualShock 3 on the TV. PSP Plus will feature in the game Resistance: Retribution, and there’s no doubt others will get this feature too.
To enable PSP Plus, gamers must have the copy of the game on the PS3 (in this case, Resistance 2) as well as the PSP and no firmware updates are needed. PSP Plus will give “rumble” to your games and add a second analog for use.
PSP Plus gives the PSP DualShock compatibility
at 5:20 PM