Trem, I believe you can change servers in game fairly easy also. There is some cool down if you do it around the WvWvW battles (i think to prevent folks from jumping over to the winning server). But it sounds like they are going to make it easy to move around and play with your friends. That and the thing that allows you to play with your friends regardless of level (and still gain some xp and rewards for you actual level) is pretty cool.