The plan is to keep it simple, otherwise I'll never get it out there :P But I personally find the data and its presentation interesting and a useful memory aid, so I was hoping other people would also.

I doubt Salesforce has something as general-purpose as I have in mind. My concept isn't exclusively for tracking interactions with people and can be used for pretty much anything you can describe with text.

My life has been a bit too eventful recently, though. It's tough to find the time to work on it.