Some time ago as a Python/Django/JQuery/pywikipedia exercise I've hacked a web based recent changes patrol tool. An alpha version can be seen at the: http://www.wpcvn.com
It includes a few interesting features that may be useful to the community (& researchers designing similar tools): 1. tool uses editors ratings, primarily based on user counters (includes reverted revisions counters) calculated using the wiki dump; 2. site members can see each other reviewing; 3. site members can see edits being reverted (with ratings of the reverting editor); 4. site members can confirm their nicknames (bind to the account on the Wikipedia, the tool can catch/identify a GUID in the edit comment to WP:SANDBOX); 5. can aggregate IRC feeds from bots (currently only MiszaBot is supported).
WPCVN yet another collaborative *(it shows other users actions - patrols and reverts)* Web 2.0 RC patrol tool that runs in a browser. It has been tested with Firefox http://en.wikipedia.org/wiki/Firefox, IEhttp://en.wikipedia.org/wiki/IEand Google Chrome http://en.wikipedia.org/wiki/Google_Chrome. Currently operates for en-wiki only in the alpha http://en.wikipedia.org/wiki/Alpha_testing mode. WPCVN aggregates recent changes IRC feed, IRC feed from the MiszaBot and WPCVN user actions. It also uses pre-calculated Wikipedia users "karma" (based on the recent en-wiki dump analysis) to separate edits made by users with clearly good or bad reputation. The tool is open source (LGPL) and uses JQuery/JQueryUI + Django backend.
-- Regards, Dmitry