Firstly, Hey there!
First topic, hopefully not my last.
Some of you may have seen me in game, but whatever.
Secondly, On the buy page it says that buying it allows you access to survival mode.
By this, does it mean that those who have bought Minecraft have survival already, or that buying will enable survival mode when it's released?
Well I can tell you that buying it won't give you access to anything other than changing your skin at the moment, I can't tell you if only the people that buy the game will get access to the survival mode and stuff.
As far as I know the current 'plan' is to have survival released within the next few weeks - it's being built right now - at which point the game will move into 'beta' and the pre-order price will go up to 15 Euros.