She confirms she worked on the Indigo Magic Desktop (mainly designing icons), but says she can't recall the exact scope of her work: "It was LONG ago but I will see if I can dig it up...sorry not to be able to summon this up!"
The SGI icons gave much better feedback with animations when you clicked on them, they had quaint drop shadows, let you know if they were open already and showed if they were links or not. They had so much going for them. Someone, e.g. at Canonical, should revisit this aspect of the SGI desktop and ask Susan Kare to apply her touch to something new yet derived from the SGI work. Just having her name to an Ubuntu desktop would win over design snobs who don't see whatever you get on Linux as 'design worthy'.
Do keep me updated as I still believe everything SGI was the best ever. Thanks!