Hi,

Using Wikipedia's API I developed a web-based tool to plot revision activity timelines for Wikipedia articles. See the revision activity for "Tour de France":

http://sergionunes.com/p/wikichanges/?q=Tour_de_France

Also check the Greasemonkey script that embeds these timelines in Wikipedia using Google Charts:

http://sergionunes.com/p/wikichanges/about

Feedback is welcomed. Thanks!

PS: Btw, I would really appreciate if you could vote on this bug :) https://bugzilla.wikimedia.org/show_bug.cgi?id=12188

-- Sérgio Nunes