Chandler is an interpersonal information manager that adapts to your changing needs.
Speaking of changing needs, those with a long memory may recall that initially it seemed like they were going to go for a RDF-based approach. That was soon dropped, it seems they then had something plain-XML. Now it seems they've dropped that, pushing the functionality back into Python itself.
Marc Canter may have a point :
Three years later and at least $5M Chandler hits version .6. Man oh man what we could do with that sort of money!
See also: OSAF blog[Danny]