Amazon.com is now taking preorders on the retail media for Windows 10 Home and Windows 10 Pro. And as I first revealed on Twitter, with this version of Windows, the Setup media is a USB flash drive, not DVD.
In both cases, availability is listed as August 16, 2015. And as you can see, both sport some pretty Spartan-looking packaging.
Windows 10 Home | USB Flash Drive is $120 in the US.