I just updated this plugin for WordPress 3.0. I also simplified the manual cron process. If you have any questions post them in the support forum.
What exactly does this plugin do?
Let’s say, hypothetically, you have a website that gathers news from RSS feeds with some sort of parser. Sometimes, for whatever reason, you might get multiple versions of the same post. Delete Duplicate Posts Pro WordPress plugin to the rescue.
This plugin offers the ability to manually list all dupes and then delete them. Or you can activate a daily WordPress cron to make it happen automatically. Advanced users even have the ability to setup their own cron, for more control.
This plugin can really help you out if you are using auto-blogging plugins like Wp-O-Matic, FeedWordPress and Autoblogged.
THIS PLUGIN IS NO LONGER AVAILABLE OR MAINTAINED.