I've found that using the Apple built-in framework projects are problematic in a few ways when distributing a pre-built binary framework.
The first is that if you want simulator support, you'd have to ship a development (with simulator support) and distribution (without simulator support) version of the framework to your users. The second is that the frameworks created by the built-in framework projects don't support iOS 7. Since some apps still support iOS 7 that is problematic as well.
Do you have any experience with these issues or know how to resolve them? Can we really retire this repo at this point?