Nudge feature in Ableton 7!

[Bricey]

WOO HOO!!!
Great news, have been waiting for this since Ableton 6 was released, can't wait to map this to my Pioneer DJM-800 and get fiddling!

But, does anyone know what midi capabilities this will have, does it have to be mapped to 2 buttons (push & pull), or an assignable encoder where you can move Abletons clock from a knob or fader?

Any news or suggestions from anyone would be greatly appreciated!

Thanks from England!