In 2010, only 34 percent of consumers buying a new device opted for smartphones, PC Magazine reported Thursday.
Among network subscribers, 34 percent now use phones that are considered smartphones.
RIM's Blackberry phone is not far behind the iPhone with 21 percent of the market.
Windows Mobile, a Microsoft product, commands 9 percent of the market share and Windows Phone 7, a recent release, has a market share of only 1 percent.
Hewlett Packard's WebOS and Symbian have 2 percent of the market with Palm at 1 percent, Nielsen said.