I really wouldn't call this an early release. The word "prototype" isn't there as a sub title, it's a warning. It's not the final release. Kind of like how they had the beta version of CBT's strat ops book. I haven't gotten to do more than skim my copy, but a friend read his cover to cover while at the con. From what he told (and sometimes showed) me as he read, the gencon book is far from a final release and may even be more of an alpha than a beta release. There is a lot of potential in there though and I hope catalyst pays close attention to the feedback I'm sure they're going to start receiving over the coming weeks.