On the testserver when you press the alt key whilst moving then it stops you dead in your tracks. Whereas on the retail server you are able to move freely with the alt key pressed.

It would be greatly appreciated if we could move whilst pressing the alt key. I often find myself running through the world and toggling my minimap, having to stand on the spot to do this is jarring. Along the same lines, it is invaluable to be able to toggle trade on the go - this has likely saved my life at an OP fight before.