Is there any specific instruction for wheel removal with a belt, vs an IHG with a chain?
Does belt tension make wheel insertion in the dropouts difficult?
Do belt-riders have any recomendation on the best style of frame, whether the tensioner should be an eccentric bottom bracket or sliding dropouts. can you even use horizontal dropouts with a belt?

I am pretty well practiced at removing the Alfine hub with disk brakes. It is a bit more hassle than derailleur gears but not much.

I saw a link a few days ago to a German company who sell rather nice looking belt-drive commuter/trekking bikes. Take a look at Rose.