dropdeadfred -- it does appear that the ongoing NRA confab is not, at least not generally (query whether they might be handling attendance at any speeches/meetings/meeting rooms any differently), imposing any special carry restrictions -- though I believe it is/remains correct that at least most gun shows as such do not allow folks to bring/carry their own into the show -- a statement currently at http://www.nraam.org/ regarding carry at the ongoing NRA confab:
"Texas generally prohibits the open carrying of firearms. During the NRA Annual Meetings & Exhibits, conceal carry firearms are permitted in the George R. Brown Convention Center and the Hilton Americas-Houston Hotel. When carrying your firearm, remember to follow all federal, state and local laws."
Greensburg, KS - 5/4/07
"Eternal vigilance is the price of Liberty." from John Philpot Curran, Speech upon the Right of Election, 1790