Hi Irakli,
1) Sorry, didn't understand the question
2) We haven't announced our plans yet around OpenXPS. We're very please with the outcome of standardization although unfortuately it was too late for Windows 7.
3) Take a look at Windows 7 - there's substantial new APIs for Win32-based development, an enhanced viewer, and new services for XPS driver development. Office 2007 SP2 included Save As XPS functionality. If there are specific things you are looking for, please let us know.
4) That's a question for TC46, the Ecma technical committee that is now responsible for OpenXPS. The TC provides a feedback channel at
http://www.ecma-international.org/memento/TC46.htm 5) See 2
regards, /adrian
http://blogs.msdn.com/adrianford