I'm David Pogue, columnist for NY Times and Scientific American, and host of "NOVA" miniseries on PBS. AMA!
My short bio: I'm a columnist and TV science/tech guy. Tonight is the premiere of my new NOVA series, "Making Stuff!" http://www.pbs.org/wgbh/nova/tech/making-more-stuff.html
EDIT: That was a blast, youse all! Thanks for coming prepared and interested!