Originally Posted by Crowl
I assume you only mean adding voice capability to 3G/4G tablets rather than increasing the cost of wifi-only models and while they could do this, it would require additional certification and testing before being approved for use by a carrier delaying a launch for limited benefit to most of its users or increasing costs.
That would only matter for carrier subsidized models, wouldn't it? Unless the carriers would take specific steps to block these from accessing their systems. Which, to my knowledge, nobody except AT&T has ever done. It definitely won't be a problem in most parts of the world.