Rock Band, Live opening date?

According to the official site Rock Band, Live opens on Saturday, June 5th. However the 2010 park guide says it's opening on Sunday, June 6th. And last weekend the sign on the front of the Jack Aldrich Theatre said it opens on May 29th (perhaps just a mixing-up of the dates with Canada's Wonderland?), so I was wondering which one of these dates is correct.

Also, in case this hasn't been posted before, the LA Times Funland blog has a description of the show including the storyline and set list.

It opens Saturday, June 5.

I'm gonna be trying it for sure. I'm curious to see, however, how bad the latency is with the set up cause the Guitar Hero Arcades have HORRIBLE latency (minus the one in the Breakers Arcade which is almost spot on). It may be me but I don't wanna play expert and make a fool of myself cause the latency is bad. :P

I'm sure they know what they're doing. :)