Roundup: an Issue-Tracking System for Knowledge Workers
Go Ping, you rock! Also, go Bizar Software and ekit.com for letting me implement this system on their time.
Thanks also to the many people on the mailing list and in the sourceforge project: Anthony Baxter, Juergen Hermann, Roch'e Compaan, Engelbert Gruber, Titus Brown, Jeff Blaine and Patrick Ohly.