Liz Henry has some excellent suggestions for the conference. Though I admit that I haven’t yet found a good solution for contact sharing. Bump seems okay, but required more rigamarole to set up than I’d like thanks to the way contacts work on HTC phones. Same with using Barcode Scanner to create a QR code.
I had better luck with my Epic 4G — the contacts program there will send the vCard via GMail, which is all I want. Makes it easy to share my info with folks. But the way Android is constantly trying to link up contacts and combine multiples is driving me insane….