Apple Closes the Gap on Android

Nielsen:

[…] the high-profile launch of Apple’s iPhone 4S in the Fall had an enormous impact on the proportion of smartphone owners who chose an Apple iPhone. Among recent acquirers, meaning those who said they got a new device within the past three months, 44.5 percent of those surveyed in December said they chose an iPhone, compared to just 25.1 percent in October. Furthermore, 57 percent of new iPhone owners surveyed in December said they got an iPhone 4S.