"Personal Knowledge Management "
It's called...... a brain.
If you can't remember the shit...chances are it's shit not worth remembering.
If you MUST have a program to replace your brain....google....[wait for it]...."Personal Brain"
It's exactly what you are after....
Me...in my lifetime I have forgotten more 'shit' than most people will ever learn.....
...or want to...
Yeah I looked at "TheBrain" software
Conceptualization/mind mapping is only a small part of knowledge management.
Also, you need to subscribe to their services to go online.
Basically the problems are
1) You are trusting them with your deepest personal info; In this day of peeping on anything in order to monetize someone else's information, that is the dumbest thing you can do.
2) Java based *snort*
3) I already can tell that the visual representation is not practical, but more of a gimmick to get people to use it.
But yeah, this is sort of on the right track... now only if it was an open source appliance I could manage myself.