It's really too bad that there's not a decent open source effort for a Lotus Notes based project management solution. There are a couple of projects kicking around that look to be a great start but never got off the ground. There are other ones out there that look great but cost a good bit of scratch for a license key.
I've built a great helpdesk/job management workflow system but it lacks a project management component. Perhaps I'll build onto it to give me the full functionality that I'd like to see...then sell it out of spite!