I'm still wondering what happened to Musemage. It appeared to be abandoned sometime in 2012-2013, and now the "download" page on their homepage takes you to an Apple iphone app of the same name but different version number 1.1.1 (down from 1.9.5), all trace of the desktop version has been removed from their site and the mobile version is yet another one of those "one click beautifying" over-simplified apps...
So if the best example of "built from the ground up to be totally GPU accelerated" desktop photo editing has been abandoned due to lack of interest / sales, then it looks like 'the average person' is still more interested in using free stuff like Paint.NET / Photofiltre / GIMP / Fastpictureviewer / Irfanview / xnview, etc, on their existing CPU's for the bulk of simple crop / resize / rotate / color adjustment / red-eye reduction stuff.
