"Login with Facebook" without the app will just use the browser on your device and you can continue login into apps using your fb account without the app.
It's neat that on the map usa is divided into states but other countries are, well, just countries. Why not draw the countries into smaller pieces as well?
"...and a vibrant cultural capital the size of Nashville, Tennessee..." ahh yes, as a finn, I know all the us cities/states and their size and instantly compare finnish cities to us counterparts. Indeed I do sir.
This! Annotation and discussion would bring a lot of value to this site! Would be awesome to be able to start a discussion (thread?) from a single note and drill down to the really specifics.