Splinter Cell Conviction the most fascinating of all Stealth Action games  for Windows Phone 7, where you will play as a famous assassin, Sam Fisher. Bloodrock Gameloft Studio for porting games to wp7, with excellent graphics, addictive gameplay, and of course a big experience of the passage.
The essence of the game is deep, but in a nutshell, go through the levels killing everyone in your way who has a gun!