Am waiting for the new Alfine 11 speed IGH... can get a nice 25-95 gear inch range with a single chain ring which is what most folks are going to find useful for their day to day riding, commuting, and it should be especially nice for touring and people who ride small wheeled and folding bicycles.
With derailleur bikes I don't think many people need more than a 7 speed and a well chosen double and for many, a single would do.