Just in case anyone doesn't know:

ArenaNet is doing a final stress test tomorrow (August 2) from Noon to 4pm Pacific time (I wanna say that's GMT -7 right now). They will be working on the game throughout the testing, so things may be a little choppy.

Additionally, the ANet team has commented that, due to a bug, the game was slightly easier than intended during the most recent beta weekend event. Word is that the difficulty will be more on par with BWE2 for the stress test and when the game launches.