I don't have a problem with Maya's UI either, but I'd love to have an improved Hypershade, just like the one from XSI, where you can gather a whole lot of information with one look.
But I also love the rest of his redesign too. Look at the improved Outliner, Channelbox and Timeline - he gave the whole idea more than just one thought or too.
I wish this was available to the public.
One question: if Maya on Linux is so shaky - why does practically every major studio use it in production? I thought reliability is the one single most important aspect of a software?
Subdivide and conquer!
Free your mind, and your ass will follow!