Gnomie Michael Coombes writes:

Hey Chris, Just saw your video on wallpapers in Windows 7 Build 7000, and thought you might like to know a few things about them, in case you didn’t already:

The default wallpaper you get is based on the locale where you install it, so being in the US you should have had some nice pictures of locations such as Crater Lake in Oregon and suchlike. This, itself, is quite nice, but just in case you didn’t already know, you can find the wallpapers from other locales in C:WindowsGlobalizationMCT for that international feel.

Hope you find this useful!