Sony just finished showing off a new technology called “PSP Plus” that lets players connect their PSP with their PS3 so that they can use the PS3 wireless controllers while playing games on their PSP. The rumble of the DualShock 3 will also be supported, so it’s definitely something we’re looking forward to.
Currently, Resistance Retribution is the only game supporting PSP Plus but we’re sure that’ll change very soon.
Thanks joystiq!