The picture has already been proven fake by numerous other people. However, that's not to say such a product couldn't be real. I pray that it isn't, though.
The only thing I can think of is moving the mouse about and accidently tapping a dock object could get very, very stressfull after a while, so I hope its an option and can keep the dock on screen instead.
Hmm. I wouldn't want a glossy trackpad. Secondly, it would add weight and complexity to have another screen. Thirdly, I really don't see any use for it.
I've used Windows all my life but used a Mac for the last 12 months and I am converted. Selling my PC and by the time I get the monies these new Macs should of been released (Mid October.)
Good luck with your endeavour.
EDIT: Forgive me if I am wrong, but that's a MacBook, not a pro? I say that because of the positioning of the DVD drive, and how close to the edge and central opening slot it is? Well, judging by looking at a current MacBook!
The rumour has it that with the new Macbooks will be aluminium as the MBP and that Apple will consolidate the laptop line-up, resulting in three models overall: Giving you, the consumer, even less choice. Welcome to the world of close to a vertical monopoly. Myself I will be moving to a Thinkpad next.