[ale] OSS web based task manager?

[agcarver+ale at acarver.net (Alex Carver)]

Hey everyone,

Do any of you have a recommendation for an OSS web based task manager? 
I'm looking for something easy to use for a small group of people that 
will keep track of tasks for various projects.  The big thing is that it 
has to support tasks being assigned to multiple people at once.  Other 
than that I don't really need much more.  I don't need a bug tracker, 
either, just a project, task, person(s), and a date or two (start and 
completed for example).  I'd be running it on an internal LAMP server

I'd write my own if I had the time but I've got my own tasks to do. :)