We have mentioned MapMemo before, but I thought it was missing that little something (geographic coordinates). Caffeinated Cocoa has rolled out a great little desktop app for the Mac called Magrathea that uses web services to pull in Yahoo! Map data and geocoding services to allow to geotag desktop data, web information, and the ability to geotag and upload photos to Flickr. So as with its name sake you can make your own world with this fancy little app.

Magrathea – Caffeinated Cocoa Software