I was just thinking that maybe it would be cool if we could backdate our Xbox versions of Minecraft so that we could play in whatever version that we wanted. This way we can access old seeds (Glacier, 666, etc.) or have features that we don't like not implicated (Old world generation, no food bar, no regenitive hunger, redstone changes, etc.). This way we could play a much simpler version of minecraft without having to mod our saves/xbox/whatever. In the main menu there could be an option that would let you choose what version/TU that you want. If a friend wanted to join your world, he/she could change his version to the same as yours before joining, or when he/she accepted the invite or joined your session in progress the version would be automatically changed. I know this would probably take up alot of space on your hard drive, but that could be solved by having this feature implemented on the new disk versions of minecraft. Anyways, thanks for checking this out, and I hope you guys could improve on my idea :D.
I hope this gets added.