Comment by grishka

> At that time, the carriers controlled so much of the cell phone experience.

In English-speaking countries, maybe. But I remember at least Windows Mobile PDAs that had both a cellular radio and wifi before the iPhone launched. At least Russian carriers never cared at all what kind of phone or other device you were using on their network. You bought it unlocked for the full price from somewhere else anyway. There were various attempts to do US-style carrier-locked phones with 2-year commitment with no or little upfront payment, but none of that really stuck. The only exception to that was SkyLink, Russia's only CDMA carrier. They sold their own branded phones but even those, iirc, were for the full price upfront.