@gums:
There was no overspeed warning*. As I understand it, Chris Scott's theory is predicated on a possible attempt by the computers to compensate for the initial slight back pressure on the stick - as a theory it makes sense, but like so many theories there's not enough evidence to go on right now to say one way or another. My suspicion is that the "how" in this case will be simpler than the "why" - so I'm waiting for the report with interest.
* - based on the information released so far. I'm pretty sure that if there was one they'd have mentioned it - it would have saved a lot of argy-bargy on here, that's for certain!