In the absence of Apple's cooperation, a standard build of the MacRuby framework could be distributed independently, à la Growl (http://growl.info/). In this way developers could not only drastically reduce the size of their downloads, but also stay as up-to-date as possible. It would certainly seem that the license would permit it:
http://creativecommons.org/licenses/by-nc-nd/3.0/us/
Yes, the App Store rules would prohibit apps with external dependencies such as that one, and at least for self-contained apps distributed through the app store, Apple themselves would be paying for the bandwidth resulting from their own poor decision, so an argument could be made for both ways.
Yes, the App Store rules would prohibit apps with external dependencies such as that one, and at least for self-contained apps distributed through the app store, Apple themselves would be paying for the bandwidth resulting from their own poor decision, so an argument could be made for both ways.