Jobs actually does some design for the Apple Store's architectural features.

Here's a design patent for the glass staircase, listing Jobs as lead designer: http://patft.uspto.gov/netacgi/nph-Parser?Sect1=PTO1&Sec...

Amusing if true: the glass cube outside the Manhattan Apple Store was designed by Steve Jobs himself, and the lease stipulates that it is his personal property and he has the right to remove it at the end of the lease: http://www.appleinsider.com/articles/05/12/05/jobs_wants_32_...

(If I ever had the balls to ask Steve Jobs a completely inane question, I would ask what the hell it was with him and cubes.)