I really wish I could argue with you shorty but I can't.
I don't like or use Modo, and I've never tried Body Paint. therefore I have no knowledge of either app
I'm not sure what you mean by multi layered texture support???
do you mean like texture/color, bump, specular, etc.? If so I agree that it would be nice to be able to create multiple maps, but for the sake of getting a model textured and ready for a still render, I think zapplink is very easy, and to me, it alone is worth the price of Zbrush.
I'm not in the business of producing 3d models, or animating...I produce 2D art for print, sometimes using 3D tools, so zapplink is a good fit for me. Nate is pretty much in the same business, so i figured he would get a kick out of seeing the little demo.