Here are some more shots showing the Windows Mobile 7 UI as presented in the built-in apps.
The first screen would also be the first to show the look of the Windows Mobile Marketplace. As can be seen it will also play a role in promoting Microsoft’s online services, which likely due to anti-trust reasons Microsoft is reluctant to ship pre-installed with their devices.
The IM app uses an attractive UI (no sign of Windows 3.1 here) and features contact pictures.
The last picture of of the Zune UI.
While these screen shots raises concerns with me regarding navigation and task switching (possibly alleviated by hard buttons) it is however clear that any concerns regarding the cosmetics of the user interface will be laid well to rest.