Comment Re:Single Supplier (Score 3, Insightful) 100
Unless there's a big software development project on top of iOS involved, I don't see where the "single-supplier" risk is.
If what NTSB needs is a modern smart phone, they have multiple suppliers to choose from today, and are proving that point by potentially switching from one brand to another. Presumably all these phones can make and receive phone calls between brands; make and receive text messages, emails, etc. NTSB can mix and match between suppliers at any time unless they enter into deal terms that keep them from doing so.
Now if they've built a bunch of custom IT 'solutions' on top of the phone that prevent them from doing this, I'd argue that's an issue not in choosing a specific phone but in how they set up their workflow in the first place.