Barack Obama's promise to announce his VP pick by text-message -- a smart and obvious ploy to sign up mobile users for future campaign communications -- has been getting a lot of attention this past week, not just from us, but also in a smart op-ed by our friend Garrett Graff in the New York Times, and also today in a (rare for him) catch-up story by the Times' Brian Stelter. What I hadn't noticed in all this coverage was a quiet but probably more important development: The Obama campaign just rolled out its new mobile platform, m.barackobama.com, which is expressly designed to work on most mobile phones that have internet access. Scott Goodstein, the Obama team's mobile guru, has...