Teller1900
En-Route
Sorry if this has been posted before.
From this article.
And here's the site itself:
http://www.wolframalpha.com/input/?i=planes+overhead
From this article.
Gizmodo said:It's an awesome—and supremely nerdy—new feature that the computational search engine has cooked up: it will poll your geoIP location and tell you what planes are overhead. And that the mobile apps take advantage of the feature actually makes it somewhat usable IRL.
And here's the site itself:
http://www.wolframalpha.com/input/?i=planes+overhead