Yes, Philly does Web startups (foundedinphilly.com)

No doubt, Philly is on the upswing

We have top notch universities conducting top notch research.

Excellent post. I have been looking for a good list of speaking and demo events in the greater Philadelphia area, and this is the first I've seen so far.

At about what percentage into my minimum viable product should I start giving presentations to build good traction?