Well I took the new Colorado for a test drive this morning..all but a loop around the block.
Actually thought it drove well, nice pick up which I have found lacking on the old models, the suspension felt a bit bouncy but it was unladen and I am used to a firm ride. Steering was good, a little bit noisy but it is a Ute.
Styling wise I think it is a bit ugly although they can always do a Mazda trick and advertise them with the bull bar on.
Couldn't give me a price but they are hoping that they will be similar to current model (can't see it but you never know).
It was the LTz model (I think), 6 speed auto and had all the basic sedan mod cons (blue tooth, steering wheel controls, extra airbags etc. Had digital speedo readout when using the cruise control which I haven't seen on any other Ute (one of my favourite features on the Audi) and had rear arm rests (kids favourite feature).
So all up I give it a thumbs up for the 10min I had in it but all depends on the pricing.
http://www.themotorreport.com.au/53563/2012-holden-colorado-revealed-and-detailed-ahead-of-mid-year-launch