There’s been some speculation about what would be the Twitter of SXSW 2009. What breakout app would everyone begin to know and love. And while your answer might be foursquare, the real answer is Twitter. There was no more powerful tool for communication and sharing than good old twitter. Actually, the breakout app this year might be Tweetdeck, many here were using it and I personally converted at least 3 people to use it.

So what does tweeting your experience at SXSW result in?

I added well over 100 followers in the last 7 days:

Graph from twittercounter.com