Yesterday google announced Google Clound Universal Printing specification for Chrome OS. One of the surprising things for me was their intrinsic support for Open XPS format for printing. ( http://code.google.com/apis/cloudprint/docs/proxyinterfaces.html )
This is a surprise considering in XPS seems to be one of the least priority areas for Microsoft though it developed the specification.
May be Googles decision has to do with XPS being ECMA Supported, Open and XML. Anyway good to know that atleast the MS competitors are looking at good abandonware developed by MS