"Two years after Microsoft launched its XNA initiative in San Jose, the company is back, talking about progress made in making game development easier."
"In another example, he showed off a game of mahjong on a smartphone running Windows Mobile. Satchell explained that Microsoft brought the game's developer to its offices and asked him to port the game to the PC and Xbox 360 using XNA tools. The developer had the game running on both systems in a day, and it took an additional six days of labor to gussy the game up to next-generation graphical standards. The result was a game whose underlying code was essentially identical on all three platforms, save for the graphical updates for both the PC and Xbox 360. "