Ah, RCS: it stands for “Rich Communication Services” and it’s meant to replace SMS as the default way most phones send text and multimedia messages. It’s more powerful than SMS — without that silly 160 character limit and with better support for images and video and group chat. But like SMS, it’s a carrier-based solution, which means that it has to prove that it can overcome historical problems that SMS has had, including crazy pricing models and weird interoperability problems from carrier to carrier.

Google has been working on getting carriers on board since at least February of this year to prove that very thing, and today it finally has something to announce: Sprint is switching over to RCS on its Android devices. Everything that…

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