Yes if you want to play on live, you can still play offline without it i am pretty sure.
Buy a new Xbox and keep it away from the internet. There is no way to reverse a system update, only game updates.
It prepared the xbox for the New Xbox Experience that is releasing later this year.
The new dashboard is part of NXE, or new xbox experience.
the end update april 5
yes i have (^_^)
Between August and September by the looks of it
my xbox 360 has already bin updated can i make a new profile
Minecraft for xbox360 is still in Alpha mode, but i think mojang is waiting for next minecraft update for xbox to be updated. not sure though
during mid to late october
No, it's just an update.
No games will update your Xbox 360. When you insert a game and it asks you to update, this is a game update.
There are no new features yet. It is just a preparation for future updates. Source: http://majornelson.com/archive/2009/09/23/xbox-360-system-update-rolling-out-no-new-feature.aspx