I'm mostly concerned about deployment to the XBOX360. I'm not worrying about it too much right now, but I'm trying to keep an eye on it. The XBox has a lot of horse power, more so than the rest of my computers put together. I know, for instance, that the XBOX doesn't implement all of the .NET framework. So I'm not sure if it allows .NET 3.5, or if it limits it to 2.0 for whatever reason.