Got the news this morning, and as both an avid scuba diver and running a scuba site, I am more than intrigued and wanted to start playing right away! But apparently the Mac version isn't available now (probably due to the Mountain Lion issues you discovered?), and the PC version seems to require a discrete video card, which surprises me a little as most of Intel's recent chips have integrated video. Requiring a discrete card would seem to eliminate a large percentage of PCs out there, and especially newer ones. Another minor thing: I do not like to put credit card info into a form, and especially not with the security code. Since you do accept PayPal for donations, I'd much rather pay via PauyPal.