Windows Embedded CE 6.0

Windows Embedded CE 6.0 (codenamed "Yamazaki") is the sixth major release of the Microsoft Windows embedded operating system targeted to enterprise-specific tools such as industrial controllers and consumer electronics devices like digital cameras. CE 6.0 features a kernel that supports 32,768 processes, up from the 32-process limit of prior versions. Each process receives 2 GB of virtual address space, up from 32 MB.
Windows Embedded CE 6.0 was released on November 1, 2006 and includes partial source code. The OS currently serves as the basis for the Zune HD portable media player. Windows Mobile 6.5 is based on Windows CE 5.2. Windows Phone 7, the first major release of the Windows Phone operating system, is based on Windows Embedded CE 6.0 R3; although Windows Phone 7 is also using Windows Embedded Compact 7 features.
New features in R3.
Windows Embedded CE 6.0 R3 was finalized in September 2009 for OEMs and serves as the base platform for the Zune HD and Windows Phone 7. CE 6.0 R3 includes the following new features and abilities: 
Note that these features listed here are not all specific to Windows Phone 7 or the Zune HD.