Sony have laucnhed the adhocParty for PSP in Europe. It’s a free download from the Playstation Store on PS3. And it will let you play adhoc compatible games (only Gran Turismo, Monster Hunter Freedom Unite and Dissidia Final Fantasy this time) over internet via PS3 wiht yout PSP as your opponents sat just right beside you. Very nice feature.
You can watch the demo of adhocParty from blog.eu.playstation.com bellow.