The CDW site is now taking pre-orders for the HP Elite x3 phone with Windows 10 Mobile. The price for the unlocked 6-inch phone is $799.99, but customers have to call CDW to find out about its current availability.
The site is also taking separate orders for the phone's Desk Dock accessory, CDW is selling it for $163.99, but again, interested buyers have to call the site to see if it is currently available. There's no word on when the phone or the Desk Dock will begin shipping.
Thanks to AJ for the tip!