iPhone users are pretty faithful updaters whenever a new OS version is released. On top of that, they are typically quick to buy the newest hardware. From Gazelle:
Of the 881 respondents Gazelle heard from in a recent survey about the upcoming iPhone launch … an overwhelming 85% tell us they are likely or very likely to buy the new iPhone when it’s available.
With iOS 7 set to hit the masses soon, developers (and the testers working with them) have a lot to do to make sure apps are optimized for the latest Apple offering. Here’s a video that highlights seven key changes you’ll want to be aware of. (For more information on these tips, download the free companion eBook.)