For anyone who didn't see the quick look, one of the lesser talked-about features with the new 360 dashboard is cloud saving. If you have two internet-connected 360s, your profile can now live on both systems. Additionally, there's an option to turn on cloud saves, which saves your files at MS. When you log into the other system your files are there waiting for you. Unfortunately, marketplace content can't be saved to the cloud which is an issue for Rock Band DLC in particular.

After trying out the cloud saves with Skyrim, I had zero problems with them. The saves are just as quick as offline saves, since they don't get uploaded right away. I have noticed that you're going to add about 20-30 seconds when starting up the game for the 360 to find and download the cloud saves. So that's something to consider. All in all, I'm really happy with the way that it works! Good on ya, MS.

edit: It actually only adds the 20 second cloud save loadup when you've switched consoles. So, for instance, I was playing all day on my main 360 and it didn't need to pull down any cloud saves. It'll only check when I log into my other 360.