On Sun, 13 Nov 2011 10:53:40 -0400, David Bremner <david@tethera.net> wrote:
> - It would be nice if people without notmuch installed had access to the
>   information.  Some way to make html dumps of threads with tags would
>   do the trick, I believe. So far I am resisting the temptation to write
>   such a thing.

In the end I failed to resist this temptation. See 

   http://notmuchmail.org/nmbug/status/

Of course there could be more queries, nicer formatting, etc, etc...
Hint: the report generator source is on the wiki.

d