It's funny though. In CoD4 I just ran CoD4, nothing else required.
To play BC2 I run Playclaw (to take screenshots) and X-Mouse (because in-game binds don't allow two functions on the mouse wheel).
So if the same limitations apply to BF3 I will have to run Playclaw, X-Mouse, Origin and Firefox.
Disconnect button is replaced with Alt + F4 :P