This year linuxcon had moved to Vancouver, making it a north american (not US) conference, which considering that Craig Ross is from the fine country of Canadia, isn't too surprising :)
Vancouver if a nice city to go visit, so that was not a bad thing at all :) and I was invited this year to talk about power monitoring. Outside of a small issue where I was so busy before the conference that I forgot which day I was suppose to fly there, and missed my flight to Vancouver, I got there the next morning on some very early flight and things worked out (putting aside the resulting poor sleep).