We're never going to to be comfortable with the kind of alchemy Gaikai is capable of. Capcom has partnered with the company to offer a demo of Dead Rising 2
, right in your browser. You'll be so impressed you won't even mind it's a year late!
It's the actual game, inside a browser window. Being a demo, there are some restrictions: you can't save, and you can only play for 30 minutes. But it's still enough to give you a taste of the game, and to be really impressed with Gaikai.