Nazer Aminou Student Developer from France,just tip us that in France Microsoft is organizing a contest on Windows Azure / Windows Phone.
Participants must use a raytracer hosted on Windows Azure to generate a scene and post it on a web site before December 30, 2011.On January 3rd 2012 the four most popular publications will win a Windows Phone or Xbox 360.
This is Nazer's scene for the contest
More info about the contest and the rest of the scenes can be found here
Thank Nazer for the tip