Firefox for iOS won't be part of the main Firefox repos because it won't be using the Firefox underpinnings. It can't use the gecko engine due to Apple's restrictions. Since it's Firefox mostly in name only, it makes sense to have it in an entirely separate repo.
We're using GitHub for ease of integration with CI systems, convenience, and the ability to move more rapidly. We'll move into m-c if and when it suits the needs of the project.
Ah, I wasn't aware of that. Thanks for the correction. I just assumed it made more sense to keep it separate since it won't be sharing any existing Firefox code since it doesn't use gecko or XUL and will be written in Apple's Swift language. Twas a silly assumption. Voted up.
