Tonight marks the second global Twestival (or Twitter Festival) in over 175 cities around the world and Bing is excited to be a part of it in at least a few of those cities. At first I asked the team to see how many we could hit in a night to lend our support and donations to Twestivals great charity beneficiary , but cooler heads (and the pesky immutable laws of spacetime) have limited us to four cities. Look for Betsy (@baoki) in Twestival SF ,