Why is it that the Snow ie. version 2 model comes with different power adapters depending on where you are located. This thing is small enough to take around the world just like my powerbook so why is it that it's regionalized like this. Can anybody tell me if the unit itself is regionalized or is it just the power adaptor itself? ie. can I buy a unit in the US and fit it with an adaptor for another region without blowing it up? ie. can I make sure that I buy two ac adaptors one for US and the other for UK and other countires where it's 220v+