One of the keynote sessions included an interview with Tariq Karim, founder and CEO of NetVibes, who talked about the Bay Area buzz. He tries to make sure he get's out to San Francisco every couple of months to get is entrepreneurial and createive mojo recharged.
Having experienced it myself on my recent visit, I was good to hear that someone else also found it infectious.
Europe does seem to be difference, there is some fantastic stuff happening but it's a lot harder to find. I wonder if because so much is happening around San Francisco the good stuff has something to rise up above and gets prominence very quickly.
It just goes to show that despite all this virtual interaction and location independet collaboration. Actually meeting and interacting with people face to face is what really makes things happen.