It would also be an interesting dance to get something like this through CTIA/Carrier certification. Having gone through the early PTCRB certification stages of

It would also be an interesting dance to get something like this through CTIA/Carrier certification. Having gone through the early PTCRB certification stages of a module integration (integrated a pre-certified GSM module into an enclosed circuit), I remember vividly the expense, and the fact that any internal hardware changes require recertification. Something like this blurs the lines between "external" and "internal." Here's hoping the CTIA and friends will adapt.