Update: The Best Buy page is live and taking orders right now - estimated shipping is 3-5 days. No sign of handsets being sold in-store, unfortunately (no in-store pickup either).
If you're one of many of us in the US still seeking out a Nexus 4, it appears another purchasing option may be springing up shortly, at everyone's favorite defunct-business-model brick and mortar electronics retailer. That'd be Best Buy, in case the allusion wasn't clear, where a listing for the newest Nexus handset has just appeared.
The caveat, though, is that it seems this is going to be a contractually-shackled version of the Nexus 4, on T-Mobile.