A:AnswerThanks for your inquiry! Software updates for your phone are available under (settings > about device > software updates) while third party application updates are available within the Google Play Store or Galaxy app store, depending on which one you used to download the app. ^Mel
A:AnswerYes. If you have the particular feature turned on (and I think it is by default) you can take a screen shot by swiping the edge of your hand across the screen
A:AnswerOh boy...I've done this...went from iPhone 3G to Galaxy s3. It was a hassle I never want to do again, but overall I would never go back to an iPhone for I enjoy the freedom of an Android phone (currently have a Galaxy s5). There is probably a better way that will get you better audio, but I found this free program to do the conversions called MediaHuman Audio Converter at www.mediahuman.com