Another project I used to work on, and plan to start working on again is Mira Groupware.
Its development has been inactive for some time, but that won't be for long.
After watching a video on Giver (an application developed by a Novell programmer), it motivated me to start working on it again.
Giver is a great application, and I suppose it does what it is supposed to do, but it has so much potential. However, development for it has stopped completely as it was just a weekend (or week-long) project. I could just expand Giver, but I don't think it was designed to do all the things I have in mind. Which Mira Groupware is. The network code for Mira has been ready for a long time. I'm now working on the Zeroconf (service discovery) on linux using Avahi (the same library Giver uses).
Hopefully I'll have some screenshots to show in a few days/weeks.