Why are upgrades from existing users attributed to the conference? What does '300 additional signups' mean measured against a typical day's signups, and more importantly 'active users'?
1) We've only counted the upgrades for existing users that we met at the event.
2) 300 is the number of "additional" signups (in addition to our "typical day's signups")
3) Don't know if they'll be active, it's been just two days :)
Disclaimer : we didn't compete on the battlefield but had a regular booth in startup alley