If anyone is curious what's going on at SI, it seems as though they've started publishing monthly progress reports on their blog. The latest was published less than a week ago for the month of February:
Thought it might be a good idea to take a minute to positively reinforce the people at SI for their work. Here on Less Wrong, it seems as though we spend a fair amount of time criticizing what they're working on, which is of course valuable. But on the whole, I think there is a very good case they're doing very important and beneficial work. So, go SI!