I missed this year’s OSCON (grumble, grumble). I had even more reason to want to go this year, because of the keynote address by Philip Rosedale (aka Philip Linden) [video link] of Linden Lab.
One interesting thing that Philip mentions: apparently a Teen grid user from the UK has developed a limited-function browser-based client, so that she can log into SL, and can chat, IM, teleport, etc., from within Firefox, without downloading an official client (or any client, apparently). Cool stuff, I’ll see if I can track it down.