Ok, so this guy had no problems building and submitting an App, targeting iOS 7+, using an Embedded framework.
He points out that an Apple Engineer nick-named 'SevenTenEleven' mentioned in the Apple Dev Forums that the following warning...
ld: warning: embedded dylibs/frameworks only run on iOS 8 or later
...is just a bug.
The warning is still present in Xcode 6.3 and it seems that an App store submission is the only way to know for myself, if this is actually a bug or not.
Has anyone found any documentation that suggests this is just a bug and that there is in fact, nothing to worry about ?
Building an App just to see if a framework like this can target iOS 7, and make it through the App Store submission process, is crazy. Unfortunately, my client just wants an SDK, so there is no App I can do a test run on at the moment.