Sure, you don't need a MicroConsole to take advantage of the OnLive cloud gaming service, just a good internet connection and most any old Mac or PC, but if your heart's set on streaming Assassin's Creed Revelations, you can pre-order the game by November 19th and get the whole OnLive Game System for free. It normally costs $99, though OnLive's actually been giving away quite a few of the tiny set-top boxes in an attempt to build the network out. Find the deal at our source links below, and expect to pay $50 (or £34.99 in the UK) for the game, and a shipping charge for the device itself. I reviewed the OnLive Game System back when I worked for Engadget, and you'll find that review right here.
Good Deal: Free OnLive MicroConsole with new Assassin's Creed pre-order
Good Deal: Free OnLive MicroConsole with new Assassin's Creed pre-order/
OnLive's offering a free TV adapter and controller with Assassin's Creed Revelations pre-orders until November 19th.