Support for XML 1.1?

Hi Folks,

Thanks for the excellent responses to my previous posting.

It appears that using XML 1.1 is the best way to go for supporting all the US-ASCII characters.

Questions:

1. Do all modern XML parsers support XML 1.1?

2. Do all modern XML Schema validators and XSLT processors support XML 1.1?

3. Why isn't everyone using XML 1.1? 

4. Is there any reason for not using XML 1.1?

5. Do you use XML 1.1?

/Roger