Skycards (i.e. Pokémon for real planes)

Airport-layover magic!! This free app uses Flight24's real radar info to display and give you the chance to catch and collect planes flying in your area (and, as you gain experience, around the world); a little aviation history, a little travel voyeurism, a lot of new, delicious language and factoids (I caught this plane for the first time over London today, and why aren't all flying machines called Silence Twister, I ask you). You get 5 free catches every 15 minutes, and can battle other collectors with your cards to earn credits in the game whenever you want.