1515
All the other brands went along
(slrpnk.net)
This is a most excellent place for technology news and articles.
Now I see your original point in a new light. I just viewed it as a natural progression that the mouse would take over as the primary input because of it's useful and intuitiveness. So when you say you "hated" this, I interpreted as a hate for mice in general and the wishing for pre-mice days. Rather than just a move back towards the keyboard being the primary interface.