Still waiting for the first devices with the new Pocke PC OS 2003, based on .NET 4.2, but some sites already leaked screenshots of this new system.
The appearance does not change much, but the system is based in a new platform. Apparently performance is better of some existing devices is better on this new version (some believe the H39xx and H54xx series are candidates for upgrades for instance). There's a new version of Media Player (now compatible with Windows Media 9) and the Connections screen is easier to use!