Update: Nikon TC-20E III AF-S 2x Teleconverter is also now listed in stock.
I forgot to add this to my previous post: Nikon 300mm f/2.8G AF-S ED VR II is now in stock for $100 less than the suggested retail price. The TC-20E teleconverter is still not available. Both product were suppose to start shipping in January 2010.