Task list with sharing?

Hello all.

I was wondering if the gurus here know of a program that manages your task list and lets you share it over the network (hack it in using NFS?)? I've searched high and low... IRC channels, Google, forums... Any one have any hints?

All I can find are full blown things like Zimbra. I'd like something that is smaller.

I've heard reports that the newest version of Evolution (2.32) supports sharing the task list over DAVical, but it's not available on Ubuntu 10.04. Can anyone confirm this capability, if it is true, perhaps I'll try a compile from source.

Thanks for you time.