Six made-for-mobile games created by Digital Chocolate will now become free thanks to Greystripe. That's because they contain ads placed inside the game thanks to Greystripe's Adwrap technology.
Some of titles don't sound too bad. They include Johnny Crash, Night Club Empire and Rollercoaster Rush. You should be able to find them on any of the 20 sites which partner with Greystripe.
Save yourself time, however, by going to its own Gamejump site which claims to be the world's largest free mobile game portal.
You can judge what sort of ads you'll be forced to watch from Greystripe's list of major customers which includes Yahoo, Zagat, New Line Cinema and Progressive Insurance.
This could be the start of a good thing for mobile gamers because Digital Chocolate is the third major games provider to sign up with Greystripe after Konami and Vivendi Universal.
Greystripe says it can now offer 800 game titles from 90 different publishers which will run on over 1,000 handset models.