Relaxing XHTML-Print's restriction to UTF-8 to include UTF-16

> From: Henri Sivonen [mailto:hsivonen@iki.fi] 
...
> It is said that if a "charset" parameter is present for the 
> application/xhtml+xml MIME type, the only valid value is "utf-8". It 
> would make sense to allow "utf-16" as well. All XML processors are 
> required to support UTF-16 in addition to UTF-8, so allowing 
> UTF-16 for XHTML-Print doesn't cause any additional burden 
> to implementations. Also, the payload of 
> Application/Vnd.pwg-multiplexed  chunks is defined 
> as octets, so UTF-16 strings can be delivered as  
> Application/Vnd.pwg-multiplexed chunks without any further encoding.
>

I tend to agree with Henri when he says that support UTF-16 would not be
much more expensive than UTF-8.  Does anyone on this list or the PWG's
XHTML-Print list disagree?

Jim