"Doesn't 'free' sound a lot better? Greystripe, Inc.'s Gamejump offers over 300 free cell phone games for download, in exchange for about 30 seconds of your time. Download as many games as you want, turn over your email address and zip code, and instead of charging per-download, the games display short, targeted full-screen ads every time they're booted up."

Joe Blancato looks at "The Free Future of Mobile Gaming."

The Free Future of Mobile Gaming

I was wondering when something like this would spring up. And, just from the description here, that sounds like a very reasonable use of advertising. Better just hope they don't decide to start serving you the ads when you're not playing.