I'm too used to walk with WASD..^^'
I could move the camera with keys though, but I never found it as smooth as moving the camera with the mouse.
No zooming in and out with scrolling either..a while ago though, the batteries in my mouse died and I HAD to play without it.
Wasn't that much different but I noticed I can't switch between tabs on my retainer without it °-°
It's a CONSPIRACY.