the original xray unwrap was a straight copy of my plugin/script combo integration (at least the way they integrated it with max, same ui, same options, same approach) except they didn't ship the sourcecodes like I did (I never saw their code, so I can't say they copy pasted stuff from me)... however later they really…
Hehe, Xray Unwrap is exactly Blender's unwrap code implemented in max. The feature list and names are exactly alike.. Not to demean their work bringing it over, but I can't believe they're essentially charging 13€ for open source code.