Apple released iOS 4.2 today for iPhone, iPod Touch and iPad. Not only does it bring everything in 4.0 to iPad such as multitasking and folders, but it brings some new features to all of these devices. These include AirPlay for wirelessly streaming music to another iDevice, AirPrint to print anything using a nearby wireless printer, and a new surprise. Find My iPhone is now totally free to locate a lost iPhone, delete its data, or send a message to it. This was previously an exclusive feature for MobileMe subscribers. Go on now, get that iDevice updated on iTunes pronto.