Yep, cause some of us are fed up with MAT poses, including me, who invented them :) Really, the MC6 format is better now (there were a couple of things that MAT poses could do in Poser 3 and 4 that MC6 does not support, but they don't work in Poser 5/6/7/Pro anyway, thus losing any advantage over MC6 for the vast majority of Poser users).