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Facebook cofounder Dustin Moskovitz took some time to rehearse his Wednesday morning keynote at the CTIA Wireless conference at San Francisco's Moscone Center. No surprises are likely: Moskovitz's presentation, of which you're getting a sneak preview, will talk up Facebook's "unprecedented growth." Executives and board members are tiresomely fond of citing the stat that the social network's user base continues to grow a steady 3 percent a week. Expect, too, some figures on usage of the Facebook's iPhone-optimized wireless site. We're just curious what percentage of U.S. text-message traffic is carrying "pokes." (Photo by Brandee Barker)