Sometimes the assumptions that you make to make software smart will make users go postal.
I once had a coworker who was a smart guy. He helped design the guidance system for the HARM missiles. But one day he called me over to his office to ask for help. Ends up Microsoft Word was automatically injecting text while he was typing and he didn't know how to get it to stop.
The smart software's injects were correct given a specific type of paper for the general populace, but not for his edge case.
Some of what Seth was talking about was just bad programming. AM/PM default was just bad or lazy programming. Some of what he's talking about could be taken care of using Bayesian filters or something at that level. (AM/PM default could be taken care of this way too) Make things mildly adaptive and unobtrusive, and us?
As for addresses, something like Facebook or LinkedIn could be tremendously useful. Instead of storing bits in a database, you could basically subscribe to another's address info. In fact, accounts to these websites amount to subscribing to other's personal or professional info, and letting them subscribe to yours.
