Among consumers who plan to buy a smartphone in the next three months, the iPhone is the top choice, with nearly half of all potential buyers choosing Apple, according to a survey from ChangeWave Research via a poll it conducted of 4,163 consumers in June. 

The survey focused mainly on the smartphone market in North America, with 89 percent of respondents being from the U.S. and 11 percent from outside of the U.S.

The survey showed that 46 percent of consumers who plan to buy a smartphone in the next 90 days prefer a device with Apple's iOS. This is up two points from a poll done in March.

The runner-up in the survey was Google's Android, which 32 percent of planned smartphone buyers said they will choose, which is up one percent since March.

The gains of Apple and Google came at the expense of other competitors. In the ChangeWave survey, BlackBerry only got four percent share, the lowest level ever seen, and is down 28 percent from its highest point in September 2008.

The survey also showed that iPhone has the highest satisfaction rate in the industry. When asked about the operating system on their mobile device, 70 percent of users said they are very satisfied with iOS, while 50 percent said the same of Google. Just 26 percent said they were satisfied with RIM's BlackBerry OS.