Our Mobile App of the Day is Groupon for Windows Phone.

Groupon features 50%-90% off deals on the best stuff to do, eat, see and buy. Discover your town and the world with Daily Deals, Now! Deals, and Getaway deals. Groupon is available in more than 500 cities around the world, and we add new cities and deals every day. With our Windows Phone 7 app you can: - Discover great Daily Deals and Getaway Deals near you - Find Now! deals to buy and use right away - Purchase deals directly from your phone - Keep track of all your purchased Groupons by location and expiration date - Redeem deals from your phone and never print another Groupon!

What's new in Version 2.0: We're now taking advantage of Mango! You can now browse, purchase, and redeem Groupon Now! deals, as well as pin any division or Groupon Now! to the home screen as two-sided live tiles. We've also updated our push notification service so that you get notified when deals are available for you!

You can grab Groupon for Windows Phone, here.