
Once you are added to that list, users can email said profile to other friends and download select tracks from the website to play on the Zune. "When the recipient receives the email through Microsoft’s Hotmail service through their mobile phone, a brief ad will trigger, followed by a short game similar to Asteroids."
If the user does well playing the game, then they earn a free bag of Doritos chips, and downloadable maps to nearby stores that sell them.
Although it is still in "planning" stages, Microsoft says the program is not “something that is far in the future” and just needs some solid back-end infrastructure.