Hi all.
Just found this link:
http://www-ui.is.s.u-tokyo.ac.jp/~takeo/chameleon/chameleon.htm
Does zBrush or any other mainstream app have the same functionality so that UVs don’t have to be redone after painting?
You don’t need UVs at all to paint a model in ZBrush. You only need UVs if you want to export maps from your model out of ZBrush to bring into another application. Zbrush can automatically generate UVs though, if you need them.