Motorstorm: Pacific Rift gets an official release date – October 28.
The same day Fallout 3 is released in the US.

Motorstorm: Pacific Rift is bringing 4-player split screen, online multiplayer, 16 tracks, and Trophies.
A demo will be available later today via Qore issue #4 and next month for everyone else.

Source – PS3 Fanboy