Microsoft is hoping that Xbox Live integration will draw more of the Xbox 360 fan base to its new Windows Phone 7, which has now sold 1.5 million units. In an effort to further spark interest in the device among gamers, Microsoft is actually giving away a free game to new purchasers of Windows Phone 7.

Gamers can choose from Halo: Reach, Fable III, Kinect Joy Ride or Kinectimals. Of course, the last two will require that you own a Kinect camera for your 360. The Windows Phone 7 has to be purchased by December 31 in order to participate in the free game offer.

Check out the free game promotional website. {link no longer active}