Microsoft really like their new Metro style on everything. The Metro style is spreading like a disease between all their products and is infecting all their electronics to bring people the clean minimal interface, where less really is more.
The new update for the XBOX dashboard which should be coming out this year has been leaked on to the web and is on YouTube for anyone to freely watch.
The transitions, big icons and tiles all match those coming from Microsoft's Windows Phone 7 and their new Windows 8. No doubt they want the new Metro style to be the norm across all their products so the experience is all the same.