I wonder if there'd be any interest in reviving this. I think it would be cool to have something like an RSS feed of the .plan files from various developers I respect/follow. These days you have to settle for reading their Twitter+GitHub issues.
(There were actually two such files; .project was used to give a high-level summary of what you were working on, while .plan was used to talk in detail about what you were currently doing at the moment.)
Click on a company, a person and then use the drop down to view older entries.
In some ways they reflect the way I've gone about a days work more clearly than other project management/bug tracking software I'm required to use.