This seems like a great idea - if we put together a concrete list of questions to ask, it could be worth his time to come over.
If anyone wants to ask any questions, leave a comment and maybe we can get some direct answers. (But make sure your question isn't in the AmA, first!)
Q: What do you all make of Bostrom and Sandberg's Whole Brain Emulation Roadmap?
Not sure if this has been covered on LW, but it seems highly relevant to WBE development. Link here:
http://www.reddit.com/r/IAmA/comments/147gqm/we_are_the_computational_neuroscientists_behind/
A few questioners mention the Singularity and make Skynet jokes.
The abstract from their paper in Science:
I'm curious to see LWers' perspectives on the project.