Evernote was supposed to somehow map the items with either a gps tag, an iphone photo with a gps tag (or android) or a city name, pair. I use it to hold on to my reservations, and then I simply type in the names of people I interact with, room number received, notes, etc.

With iphone and android apps, it is very easy to tag/add info on the fly at say front desk, at a restaurant, etc.

check if the gps tag is enabled yet