@Eris: You’re right about the shareware hopes, but honestly, the primary thing that keeps the source closed is that I learned Obj-C and Cocoa as I wrote this and as a result there’s a lot of cleaning up to do before I’d be comfortable opening the source up. If you want to contact me through the contact form, I’d be happy to share what you need to start playing around.

Have you considered open source? I guess you’d probably like to keep the option open to make it shareware later on, but I’d like to get my hands dirty in this code. I’ve had a similar idea for some time now and thought for a while about writing a system-wide “presence manager” of sorts. :)