It stayed up, and delivered the goods.
This was thanks to a lot of hard work by PY1NB, F5VIH and a new member of the RBN team, Dave Pascoe, KM3T, as well as the donation of a temporary dedicated server by George Fremin, K5TR.
Something over 1,700,000 spots were delivered in the 48 hours of the contest, which comes out to around 10 per second worldwide. Most users said they needed pretty stringent filtering to help their logging software keep up. One favorite strategy by European users was to block US/VE spots, and vice versa.
Peak usage of the RBN server was 147 users, most of whom reported no difficulty staying connected. I suspect that actual usage of RBN spots was much more than that, because I've heard from a large number of stations who were connected to RBN Skimmers with public IP addresses (a reasonable precaution given how much trouble the RBN Telnet server had a few weeks earlier). Others connected to VE7CC or VE1DX, two clusters we know of that were rebroadcasting spots from a large subset of the whole RBN.
We have set up a new Yahoo group called RBN-OPS to facilitate cooperation among RBN users and between them and the RBN development team. You don't have to be currently active on the RBN to join the discussion - everyone is welcome.
Come be a part of a game-changing technology initiative in ham radio contesting.