It allows you to have tabs for different meetings, create action lists and apply them to the different tabs, so when you open the tab it pulls up the 'to do' list for that area/meeting/person. It's excellent for managing one-to-ones and board meetings.
It also has a fantastic sketch tool, which is very helpful if you want to sketch out a campaign idea or marketing principle (or just doodle in meetings).
I am, frankly, obsessed with it; I am in regular contact with the developer, who makes constant updates - in fact the drawing tool was brought in following my recommendation that he integrate his drawing app.
The search facility means that, instead of trying to search through paper for meetings, you can search all tabs for a word, or individual tabs highlighting relevant copy - you can find meeting notes in seconds.