I don't know much about this, but I saw it in MTPC's newsletter (http://www.icontact-archive.com/a3pl2DehLErMRaYi3ELGrbnrAzlpgpde?w=2)
and appreciated that it was explicitly and strongly inclusive of "fat folks". For some reason this doesn't say it, but the con is August 17th through 19th in Baltimore MD. As a femme myself, and a not so included one, I am quite tempted -- but I probably already have enough cons etc. this year (I know, and it's only February!).