Originally downloaded 2/14/06. At this early stage, Chandler is only stable for calendar management, but if you try the demo, you’ll see they have pieces of email, task management, notes, etc. in place. I was able to get my IMAP email account set up and began syncing. The philosophy is very interesting, especially the way they envision users needing to treat emails, to-do’s, events, notes, etc. interchangeably, and the well integrating sharing functions. Available for Windows, Linux, and OS X, the tool uses the Mozilla interface library, I believe.
Update 1/7/07. Chandler still refers to itself as a PIM, but the latest release (0.7 alpha4) touts its ability to handle the GTD workflow. Not yet knowing what it really is—and suspecting it’s that hybrid variety I hope will eventually arise—I’m including it in both categories for now. Somehow, I missed the announcement of version 0.7, which came on 11/30/06, but I’m anxious to get caught up! It looks like Chandler may have moved from the “Promising” category to a state that can actually be tested in a daily workflow. I’ll be finding out!
Update 1/10/07. Chandler is still very much in an experimental stage, by the team’s own admission. It’s interesting to take a peek at what the team is up to, but I managed to crash it several times over the course of 20 minutes—just setting up an IMAP account and starting to sync data, and then again when trying out one of the app’s “skins”—so I’m going to leave it to rest for a while longer. 
Oh, one other note… Chandler must be in your Applications directory in order to work… it cannot be in a different partition.
Version as tested: 0.7 a4.
