The BOW show page as of right now definitely needs to be updated. That Grand Rapids show shouldn't be listed unless they post all stops on the Camel tour as well since they were all canceled for BOW, including that Grand Rapids show.
As far as shows that they actually played, I think this is a full list.
2005.05.xx - Phoenix, AZ - Fortitude Studios (Lestat posted info about this above. Rehearsal for their first show in Tempe on 5/21.)
2005.05.21 - Tempe, AZ - Club Tattoo Anniversary Party (This was 100% the band's first show since it's been confirmed by Chester, Sean, Ryan, etc.)
2005.10.17 - Albuquerque, NM - Camel Cigarettes Tour (The band played about 6 or 7 songs before being kicked off the stage. They were also kicked off the tour after this.)
2005.10.22 - Lake Forest, CA - Etnies GvR Event (Was a show for Etnies, had nothing to do with Club Tattoo or the Camel tour.)
2005.10.25 - Los Angeles, CA - House Of Blues (There was a flyer for this show, it was just a one off show for the band. No reason to believe they didn't play it. MTV mentioned the band performing a few songs back in 2005 so it's pretty much 100% confirmed.)
2006.04.22 - Tempe, AZ - Club Tattoo Anniversary Party (Chester mentioned breaking up the band once he got sober, which he did in around June of 2006. So last show.)
The Taste The Music Festival on 11.01.2005 was found out to be a DBS show (Amir confirmed it), but was cancelled anyways. The Grand Rapids show as we know was canceled since it was part of the Camel tour, like I said before. And Albuquerque was the first show of the Camel Tour and the band got kicked off mid set. I guess we could list all the canceled shows, but why?
There also MAY be more shows, such as a rumored Best Buy parking lot show in December of 2006. BOW actually had a website where people could book the band for privates shows and private events and parties, etc. It's possible that the band was booked for shows that the general fanbase would have never known about, so I guess it's worth mentioning.