A couple of questions :
- do you have any kind of versioning/revision history ? Especially on the individuals "facts"
- do you have a search function ? How does it work ?
- Any kind of tagging system apart from the color code ?
- any way to export the raw data ?
- any plan of an API otherwise ?
- like other have mentioned, it's a bit of a touchy area, I'm fine with hosting it if it means I can access it from anywhere and I know my data is not sold some way or some other, but my 3nd point would be at least one thing to worry less if it would ever go down. Which leads me on my last point : What's your business model ?
PS: Anyone else @HN that knows of something similar ? (apart from evernote)
Edited for styling