[TheOtherHobbes]

I loved KPT. It looked like alien software from the mid 21st century that somehow landed in the late 1990s.

The UI was gloriously white and 3D way before skeuomorphism was even a word.

Is there an open source version of goo? Or a description of the algorithm?

It doesn't look impossibly difficult to work out, but it would be useful to know how other people approached it.