When you play a game using OnLive, your in-game movements are sent to the OnLive servers over a Web connection, where muscular gaming machines do all the tricky processing bits and bobs before pinging the action back to you.
That means you can play OnLive's selection of games on just about anything with a screen, including -- as we mentioned above -- tablets such as the iPad 2 or Samsung Galaxy Tab 10.1. We're told apps for both are in place and ready to go, though as you'd expect, not all games will work too well with a tablet's touch interface.
The service is free to register, then you have to start paying for the games. Right now there's a rather stonking deal on where you get your first game for a quid. Deus Ex: Human Revolution for a pound? Don't mind if we do. After that first purchase though, you'll be paying full price. Expect to fork out £35 for the blockbuster titles.
There's a subscription service too. For £6.99 a month, you can access a library of over 100 games, and BT customers will get the first three months free.
That's an impressive range of deals and ways to play, but this new service will have to stay versatile and cheap if it wants to trouble Sony and Microsoft's mighty consoles.
We've had the chance to go hands-on with OnLive, and our first impressions are that it's extremely cool to be able to jump in and out of different games, and playing something like Split/Second on an iPad is fairly mind-bending.
We did notice some lag though -- whether gameplay is smooth and responsive will be what makes or breaks the whole service. More testing is needed -- woe is us.
We're beavering away at our OnLive review right now, so keep it CNET UK for all the latest.