Note: a camera or underwater photography section might be cool, others could add reviews of their cameras as well.
I purchased the GoProHD to use as an underwater camera for spearfishing and to mess around with if I had my limit and such. All underwater purpose initially.
I purchased the camera online from a motorsports shop for 250 and was pleased when the camera arrived. I got the motorsports pack with many mounts, the waterproof case and this intense looking suction cup.
I ordered a tripod mount to make it compatible w the TiinMan camera mount and thought I was all set.
I was kept from diving for a few weeks and took the camera around to play with it around downtown miami and one a few skating trips. I fell in love with the camera based on how easy it is to mount it anywhere and the INCREDIBLE footage it shoots. Literally, I felt embarrassed that none of my footage was worthy of the quality at which it was memorialized.
I was excited to get the camera into the water for some real testing and this last sat i got the chance. I was very dissappointed. The company owns up to the fact that there is a loss of quality underwater and they attribute this to the curved lens of the housing. regardless of why, it sucks. the quality is just not good. it looks like it is shot through a dirty lens and the wide angle makes everything appear very far away.
I hope that they work tirelessly to remedy this issue, but until they do, pass on the GoProHD as you underwater camera.
I will still keep mine as it is the best above ground camera I have access to, and for the price, it is a tremendous piece of equipment.
I will edit a few video samples down and put them into this thread for you to see.