So the downside will be market penetration. In Canada or the States, or the UK. In Brazil, in Mexico, in eastern Europe, these phones could hit a sweet spot and build a strong developer community.
And this is why I'm excited. The real strength of mobile health is not going to be iPhone apps for American Doctors; it's going to be useful tools for areas that aren't already serviced by Epic or Meditech... In LMIC countries, a suite of mobile medical tools, and particularly one you might modify or extend yourself, that will be invaluable.
The developer phones are cool and orange as well.