Jeroen gave us a great logo for the 1st year.
I like the idea of continuing to use the same design as a point of recognition.
Changing the color each year is a perfect plan.
Instead of bouncing all over the spectrum, why not follow the color chart?
Each year we would take the next step thru the rainbow. (After all, the first WCC was in San Francisco.)
That would take us to the end of the decade. Then we might want to move on to a new logo design.
1st year was Bahia Red (L 30 E). 2005 would be Signal Orange (L 20 E). Then Canary Yellow (L 11 E).
Followed by Zambezi Green (L 64 K) and Adriatic Blue (L 50 E). We could end the decade with Silver Metallic (L 96 D).