I don't think this will allow third parties to setup links to
point at a document with a highlight. This feature would probably
be very popular.
> Finally, since there's a need to support multiple viewers, this should be
> implemented in a way that will work with more than just Web browsers.
This might be a separate problem, that of getting browsers to pass
the current URL on to viewers which could make use of them. Another
reasonably simple browser feature which has sadly been ignored so far.
rob.