Investment firm Allen & Co's Sun Valley, Idaho media summit is a place for the world's wealthiest and most influential decision-makers to chill out, enjoy a couple double Macallans on the rocks, and talk shop. It might even be a rare opportunity to escape to the comfort of a competitor's product -- a guilty pleasure you wouldn't dream of indulging in more buttoned-up environments. Google CEO Eric Schmidt was caught snapping a candid shot from a BlackBerry (we're pretty sure it's a Curve 8900) at the event -- and yes, granted, Google makes apps for BlackBe