Plugged your iDevice into an iTunes-equipped machine lately? You should. Apple has just let loose iOS 5.1.1, a seemingly minor point update that actually promises to fix quite a few (potentially) substantial quirks. Coming two months to the day after the iOS 5.1 software update, the extra 0.0.1 is said to improve reliability of the HDR option for photos taken using the Lock Screen shortcut, address bugs that could prevent the new iPad from switching between 2G and 3G networks and solve a few issues that were affecting AirPlay video playback "in some circumstances." There's also improved reliability for syncing Safari