Banger post @cas.
But I think there are some things that are getting confused.
I've noticed is people calling it an operating system. Which it is not. It is a research project focused on reverse engineering proprietary blobs.
I believe they are targeting blobs rather than drivers. Their core values go against any closed source blobs so either your phone won't work like a phone or they attempt to reverse engineer a modems firmware.
If you read their FAQ section:
> NO. There are many projects working in mobile phones, and many of them are largely free software. The FSF doesn't see the need to join these projects, but wants to build upon them and improve on their current state of freedom.
So I think the chance that they take you up on your offer is questionable at least.