Hi,
In advance of any 'switch on' of the meta:GIS extension for wikipedia, I've written a script for greasemonkey which does the same thing.
It just looks through wikipedia pages and if it finds a URL corresponding to coordinates, it adds geo meta tags client side to the page.
This allows people using firefox extensions for geo meta data e.g. Nearby (see link)
Greasemonkey extension at: http://www.neilphillips.com/wikipedia
More about greasemonkey: http://greasemonkey.mozdev.org
Nearby firefox extension: https://addons.mozilla.org/extensions/moreinfo.php?application=firefox&c... ory=Navigation&numpg=10&id=503
More on geocoding in wikipedia http://en.wikipedia.org/wiki/Wikipedia_talk:WikiProject_Geographical_coordin ates
Cheers,
Neil
P.S. it's very beta at the moment, your suggestions are welcome.