Another update from a NR reader who purchased the Nikon 28-300mm f/3.5-5.6G ED VR AF-S lens from Amazon:
"Hello from Amazon.com.
We now have delivery date(s) for the order you placed on August 19 2010 Nikon 28-300mm f/3.5-5.6G ED VR AF-S NIKKOR Lens for Nikon Digital SLR
Estimated arrival date: September 07 2010"
This just in: Nikkor AF-S DX 55-300mm f/4.5-5.6G ED VR lens is also about to start shipping, with arrival date of Sept 7th or 8th.