Thanks for the ideas on the smaller trays - I know for sure that I would use one - it only took seeing that guys footage to know that two hands spread apart holding it would give me my best chances for level AND steady.
Maybe a few other thoughts. The fun of the GoPro is getting yourself in the shot. Not exactly something we do everyday with Camcorders in big housings. I did a few shots with the 5D2 @ 17mm and they are actually fun - people seem to enjoy them for some reason. Now I know why 14mm ultra wide angles are so popular. Anyhow, getting back to the GoPro - don't forget to try all those funky fun shots.
After seeing GoPro footage you instantly get ideas. For example, this guys daugher was filming this awesome sunset out of the plan window. But I'm sure it was never level and quite shaky. All a person needed to do was find a way to gently press it flat against a plane window and viola - awesome landing, take off and flying through clouds scenes. Maybe some suction cup thingy.
When on the boat, a couple if ideas came to mind right away. First, is there a way (zip tie or suction cup) to mount the GoPro somewhere on the dive boat so that it's motion will be more steady - sure it may rock with the boat - but for bigger boats it might beat being handheld. Then it would capture the activities less intrusively.
And for entry - it would be awesome to have a way to securely clip it to the end of the fin. While sitting waiting to walk in or back roll it will capture you and others as you wait to go. The entry should look pretty cool. And then quickly unclip after entry so it can be used more normally.
Great product - endless possibilities. And it sure seems that footage (at least from above water - not so sure about underwater) should blend pretty nicely with more heavily compresses H.264 from other cameras.
Oh yeah, one more comment I remember this guy making was that he was a bit upset about not being able to get up close and film the small stuff. Maybe the Blurfix takes care of that? Maybe he just didn't get as close as he could. But it was something he was a bit bummed about. Maybe it is just so wide angle that getting a very close minimum focus distance was not going to happen? I guess if he's right, maybe small critter / pseudo-macro is not possible with the Go Pro?