1. Glorious design
2. Shitty first pass, released anyhow and made a standard
3. Laboriously fixing it over the period of years until it converges on "Slightly-but-only-slightly less sucky than what it replaced"
4. Goto 1
has become the standard operating procedure of the Linux desktop world.
I am not convinced that the Gnome and KDE projects are good organizational strategies. Replacing a lumbering behemoth accountable to its many customers with lumbering behemoths accountable to essentially nobody is not an improvement, no matter how "open" the latter may be.
(Oh, and I was happy only because I'm a professional programmer and I still prefer the command line over any "semantic desktop". I freely acknowledge this is not the common case.)
[1]: http://www.joelonsoftware.com/articles/fog0000000018.html