Last year I was able to attend (largely in an onsite lurking capacity, though I did take part in some of the BoF sessions with interest, made some initial contacts with some folks, and gave myself a kick in the head intellectually) ETCon 2003.
Unfortunately, this year I won't be in attendance on site, either at the formal conference or the detourned one. Work time presures and policies conspired this year to circumvent my hopes. So I'll be testing the chatting/blogging/trackbacking/technorati-ing/Tribesing nature instead, gleaning what I can.