It seems that Bethesda was accidentally omitted from the list of exhibitors at this years E3 by the ESA. They will, in fact, be there. Hopefully they'll finally reveal Fallout 3.
Pete Hines, V.P. of Public Relations and Marketing at Bethesda Softworks (makers of the blockbuster RPG Elder Scrolls IV: Oblivion) contacted GameDaily BIZ to let us know that ESA accidentally omitted Bethesda from the exhibitor list, but that Bethesda will indeed be at the Summit.
So Pete, did my invitation get lost in the mail?
Thanks to DaC-Sniper for the tip.