Millennial Media’s Scorecard for Mobile Advertising Reach and Targeting (SMART) for June has been released with new figures.  The iPhone remained number one handset, while the Samsung Instinct came in at number two which many believe is due to the Sprint Everything plan. BlackBerry Curve came in third. U.S. Mobile Internet increased to 59.8M users; Millennial Media now reaches 74% of the mobile internet or 44.2M users, according to Nielsen. Popular Devices:  68% increase in iPhone