iOS 6 appears to be a great update, with many new and useful features for iPhones and iPads--but the changes aren't so radical that you'll have to learn the OS all over again. Apple has made important changes to Music, iTunes, Maps, and Siri. It has added Facebook and Twitter integration, and a useful location-based feature called geofencing.
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Mail is pretty solid; but then again, Mail has nearly always been pretty solid. In previous versions of iOS, Mail had a rounded clockwise pointing arrow button on the bottom of the screen that you could tap to refresh the app when needed. With iOS 6, Apple changed that to use the standard "drag to refresh" method used in all other apps.
Building A Mobile Business MindsetAmong 688 respondents, 46% have deployed mobile apps, with an additional 24% planning to in the next year. Soon all apps will look like mobile apps – and it's past time for those with no plans to get cracking.