Hi _Martin_!
I think the solution is simpler than you can imagine.
A lot of us graphics people(me included) learn quickly
through what we "see", meaning that learning photoshop
and other graphics packages, including 3D applications,
usually goes pretty fast when you can follow a step-by-step "tutorial"
that "shows" the steps taken to reach a certain goal.
When a user has gone through such tutorial/s he/she
has grasped the "use" of some tools and then his/her
brain automatically starts to see new uses for the same tools.
I firmly believe that it's the same with ObjectDesktop,
DesktopX etc. etc. If there was one or more nice tutorial/s
on how a certain app/widget/iconxthingie was put together
that would then spark the creativity on many users who
now can't "see" how they should go about things.
Sorry, but we gfx dudes/dudettes have brains that weren't built
to understand things quickly unless we "see" things actually
being "done".
But after that initial step we can usually crank out cool stuff
pretty fast
Just a lil thought.