XNA 2.0 will be out this holiday season apparently and Microsoft are holding a n XNA GameFest Conference to get developers up to speed with what new features it will have. The main addition seems to be support for networked games.

Have a look at the topics they will be covering. All looks very interesting. Remember if things don't change drastically in XNA 2.0 you will still be able to use Chrome to deploy on both Windows and Xbox 360!