If I had a company at Demo here's what I'd be doing right now. I'd be doing anything I could to get bloggers to try out my product. Here's how to pitch me -- just start a blog. Link to me. Use my last name. And then write something like:
Hey, Robert Scoble, I see you were at Demo. Did you check out our product (name the product here) while you were there? We'd love to improve it with your help. Got any suggestions? If you missed it, our product does (put a 25-word description or less here).
Now, do that for five of your favorite bloggers. Need help finding five bloggers? Read my link blog. I put more than 180 items up there in just the past few hours alone.