Omaha Tweetup #4 is over. All together, not bad. But certainly the curve his heading downward in the "coolness" chart. It seems as it gets more successful, in better venues, the less charm the event has. The first tweetup had about 40 people there. It's the first time I met a lot of great people. Not only people I'd start following on Twitter for the first time, but people that are now friends of mine.