Today at work we talked about Windows XP embedded. It’s a bout 2 years ago that i had a look at XP embedded.
Looks like Microsoft comes up with a next generation of Windows XP embedded.
Below some links:
http://msdn.microsoft.com/en-us/embedded/bb981920.aspx
http://msdn.microsoft.com/en-us/chats/cc707800.aspx
http://blogs.msdn.com/embedded/default.aspx
http://forums.microsoft.com/embeddedwindows/default.aspx?siteid=47