PlayStation LifeStyle writes:
"Adhoc Party is yet another innnovative way the PSP connects to your PlayStation 3. Adhoc Party uses your PS3 internet connection to extend the PSP's reach to local-only mulitplayer games such as Final Fantasy: Dissidia, and Monster Hunter Freedom Unite. Sony has been beta testing this service in Japan for near a year now, and is downloadable from Japanese PS Store.
Now Sony is showing signs of bringing this exciting service to the US..."