Not everybody is a fan of Microsoft's certification process for Xbox 360 games. At the same time, it's probably good to have the practice in place in order to enforce some technical and usability standards.
However, despite all the complaints and delays this whole process creates, it almost seems like sometimes they need to test usability a bit more and make some suggestions to the developers.
I would really be thrilled if Microsoft would examine how developers implement navigation through menus and screens in their games, because there are just way too many inconsistencies in how these little touches work across different games.
...