Ars technica is reporting that the new SilverSprite library on Microsoft’s shared source site CodePlex can be used to easily convert 2D XNA games to be playable in the browser based Silverlight 2 enivronment. Currently XNA runs on PCs, Xbox 360 and Zunes.
Bill Reiss, the creator of SilverSprite plans to open Silver arcade, a casual online gaming site later this March to host games using this technology.