Where is the Tahoe hybrid? Bothersome to GM faithful?

I am contacted often about the Tahoe hybrid. It seems many of GM's faithful customers would love to buy one of GM's hybrid vehicles. The only problem is that GM isn't selling any hybrid vehicles, well, other than buses.

I don't get it. I think that if GM produced a unique hybrid, similar to the Toyota Prius or a new hybrid SUV, and ran an ad campaign about the dangers of oil dependency and how American corporations and citizens need to work together to make a better world, they would have a blockbuster on their hands.

Does if bother the GM faithful that GM is taking so long on hybrids?