Gaikai has teamed up with Wikipad to integrate its service into the "first tablet to offer an attachable, console-quality gamepad controller." Competitor OnLive offers a tablet option for game streaming, albeit via touch controls or a compatible gamepad.
Never heard of Wikipad? Join the club! The device was revealed at CES, but has already gone through some changes since the original concept: replacing the 8.1" version with a 10.1" screen, and adding a quad core processor, lighter body and optional 3G for mobile. The launch date for the device is still a mystery.
As for Gaikai, it's still doing its thing on PC and working on Facebook.