Shortly after they have done such, as we've done previously for two other charitable organizations. There may be a little lag time, but not much.
Ok, sorry. I was concerned that the funds would need to be collected from pledges first and the possibility that the deal might not be honored in a timely manner if collections fell short.
[Update: I've since learned that Bitcoin 100 does a drive to collect from existing pledges and solicit new pledges, but Bitcoin 100 has pooled several hundred BTC on reserve and thus is not at risk of not delivering because of lack of funds should for whatever reason the collection efforts fall short.]