A couple months ago I was contacted by Amazon recruiters, they are/were hiring heavily for a new 'logistics' operation. The recruiter would not say a whole lot except that they were working on a delivery network.
So it seems they have the physical stuff in place but now they're working out on how to do the 'last mile' as it were.
The work sounded really interesting, I did not pursue because I did not want to move to Seattle.