Earlier polls confirmed: More than half of U.S. mobile subscribers use a smartphone

A new report based on data from U.S. mobile carriers shows that more mobile subscribers in the U.S. own a smartphone than regular non-smart "feature" mobile phones. The new study, from Chetan Sharma Consulting, found that smartphone penetration surpassed 50% in Q2.

Earlier this year a Nielsen study came to this conclusion (RAIN coverage here), but as GigaOM explains, "while Nielsen’s number are based on polling data, Sharma’s come from the operators’ quarterly reports."

GigaOM has more coverage here.