I sat in Barnes & Nobles' coffee shop for a couple of hours and read from mine the other day -- it's near a university so there were lots of folks around. I was shocked that not one person screwed up the gumption to ask me about it! And this is in Texas! We're friendly types down here!
Around work, folks ask me about it periodically, ineterest is mixed, except among my fellow IT folks, who love the thing pretty quickly.