one other difference is the way files are installed into runtime DAZ stuff is cool cause of the installer they use (may be why still using .sit files?) but stuff from the MP and freebies have to be manually loaded (a bit of a pain) see the Mac Forum faq for more details on this and there a very, very few who use exe installers only and those will not run at all ; , ; but ive been using P7 since the release with very few problems so far ^ ^