The upcoming Internet Explorer 9 supports XPS printing
IE9 moves to the XPS print path, read more about it here
NiXPS View for iPhone
We have ported our NiXPS SDK to the iPhone OS 3 platform, and build a viewer application around it.
The viewer allows you to download XPS files from the web and view them.
Thanks to the rich user interface platform that Apple offers on the iPhone, we were able to build a very nice and natural interface to view XPS files.
We have submitted our application for review by Apple last Monday, so we hope to have it available to customers in a few weeks. I'll write more in detail and post more screenshots then.