Just upgraded to IOS 9 and thus far a dud. Huge marketing blah, blah and light on the real substance and features that actually work. Split Screen ? Half of the apps don't support it. The other half of the time there is some kind of bug with slide over (the side slider menu won't quit, I have to go back to the main app, then relaunch the slider and then the sliding (right hand side only) will quit. Right side only - no ability to mute-task by placing let's say the small sliding window on the left - can only do that on the right. Then there are all of these new features I don't need designed to enable me make sure I know where my "friends" are and let's say if they're going to the bathroom at 3:15pm (I must be kept aware of that). Slow, clunky, buggy. Sorry, but I'll join the ranks of folks who feel that Apple's "dazzle me" innovation faded after Steve Jobs tail wind winded down. I was expecting IOS 9 to be a significant step forward. Not. iPad pro (which I want badly to be a killer) - I'll wait and see. However, Microsoft Surface already ahead - or so it seems. Apple has me locked into their ecosystem - which for the most part I like, but Apple - cutting edge ? No more.