Depends if they ever need to update the app and test in/on an iOS 7 environment/device or not.

You cannot load an app for development testing into an iOS 7 simulator or physical device without the latest compiler/SDK.

I'm not sure, but I believe that compatibility testing with latest (current) version of iOS is a requirement for acceptance into App Store.

So its kind of necessary that the latest compiler/SDK is used to keep an app up to date.

There are some fundamental screen layout differences with latest compiler/SDK and I think transition to 64 bit in 5S (and I assume next gen iPads) will reveal a few currently masked issues.

Meridian owner since 1992
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