Microsoft is so eager to grow its collection of apps for Windows and Windows Phone that it's willing to pay $100 per app. Under the company's new "Keep the Cash" offer, developers can earn $2000 if they submit 10 apps each for the Windows Store and Windows Phone Store between March 8 and June 30. Note that each app must be significantly different than the others you submit, and Microsoft is cutting off the program once 10,000 apps are submitted.
It's often difficult to get mobile development firms to build apps for any platform other than iOS or Android. Time will tell if the cash offer is enough to entice developers to spend the time necessary to build an app for Microsoft's platforms.