PBS has just announced its own app for iPhone and iPod touch, and from the looks of it, it's a doozy (if you're super into PBS, that is). That's right, the free PBS app will allow you to watch full-length PBS productions on your device -- including its popular news programs like FRONTLINE and the PBS Newshour. You won't be able to watch everything that PBS offers just yet, but the app also has a built-in calendar which should be super useful if you happen to structure your entire life around PBS programming like we know some of our avid readers do. PBS developed the app with help from Bottle Rocket Apps, and adds this to its other apps currently available, the Antiques Roadshow game app and the PB
