Since I'm thinking about SIGCOMM (going on this week), even though I'm not sure the official cfp is out, I assume it's OK to announce that I'll be on the SIGCOMM PC for 2010. This means I'll be repeating both NSDI and SIGCOMM PCs from last year.
My understanding is that this year they're not going to do the heavy-light split they've been doing in the recent past with SIGCOMM, where only a subset of the TPC is at the final PC meeting. Instead, they'll just be the one committee. With about 50 people.
I admit to having some concerns about how a PC meeting with around 50 people is going to run -- but that's not my job. I'd also like to point out the approach here: around 300 submission, 50 people on the PC, giving a review load of roughly 24 papers per person (assuming an average of 4 reviews), and no sub-refereeing (although experts outside the PC will be asked for reviews as needed). That's very different than the process on many other conferences I've been involved with, particularly the FOCS/STOC/SODA model -- about the same number of submissions, a PC about half the size, and lots of subreferees.
I'm not saying one approach is better or worse than another -- perhaps they're both good for their respective domains -- but the differences are worth commenting on, if anyone wants to comment.
Finally, it's at least somewhat unlikely I'll be motivated to "3-peat" for the NSDI or SIGCOMM PC for 2011. I imagine I'm filling an "network algorithmist" slot on these PCs. If anyone has any good ideas for other names I can pass on the PC chairs, feel free to comment (or send me mail directly).