Steve Perlman's long-anticipated cloud gaming service, OnLive, officially launches today, finally ready to be put to the test by skeptical and hopeful gamers around the US. After granting some early sign-ups a free year to try out the service, OnLive also announced the list of 23 games that will available from the start, including Mass Effect 2, UT 3, Assassin's Creed 2, Dragon Age: Origins, Batman: Arkham Asylum, and F.E.A.R. 2. Perlman spoke at length with Gamasutra about the beta, latency, and potential partnerships with other broadband providers. Future OnLive competitor Gaikai recently announced it's targeting 2011 for its own launch.