This dual core thing still continues to pop up. I think HPUK made a mistake on their website a few weeks ago, and listed the touchpad processor on their pre 3 page. Some eagle eye spotted it and the the thing circulated on the net for a while, but it turned out to be a typo...
I think someone on these boards (or I may have read it somewhere else) contacted HP and asked about the change, and they confirmed it was a typo and promptly changed it back about a day later..
Of course that didn't stop people from continuting to post 'AmaZlor: Pre 3 now got DuAL CORZ!!!' articles with depressing regularity, and I think thats why there still seems to be speculation that there has been an upgrade.
Yeah it was discounted pretty quick using this argument (which is way beyond my understanding of mobile chips), but of course the speculation articles had been posted by then.
I don't believe they got the processor right. Qualcomm's APQ8060 on their website state that it does not have wwan. This is the same processor on the wifi touchpad. Can't be correct since it's a cell phone, needing support from cell towers (wwan).
Also, webos 2.2 is not in the same vein as 3.0. 2.2 is mojo w/ enyo support and 3.0 is enyo if I'm not mistaken.
I might be wrong, but I'm pretty sure the dual core thing only keeps going because people keep onwards posting this rumour