If you've been eying the Nexus 6P but haven't been able to pick it up due to supply constraints, now may be the time to do it. The following 6 configurations are no longer listed as Sold Out on the U.S. Google Store:
Graphite 32GB, 64GB, and 128GB
Aluminium 32GB and 64GB
Availability seems to be jumping around every few minutes, so by the time you read it, configurations that aren't sold out now may be and vice versa.
I recommend you gogogo if you want what many are calling one of the best phones this year and certainly the best Nexus ever.