The two giants in the smartphone platform market, Apple and Google, are dominating the game and pushing any other players into the corners, a recent report published by The NPD Group shows.
According to the market research company, Android has grown in the first three quarters of this year to hold more than half (53%) of the US smartphone market, while Apple's iOS has now reached 29% of the market.
Research in Motion had a bad year, as its OS share declined to 11% (having previously been market leader), and analysts expect this trend to continue.
Ross Rubin, executive director of Connected Intelligence for The NPD Group, summarised the situation, "the competitive landscape for smartphones, which has been reshaped by Apple and Google, has ultimately forced every major handset provider through a major transition."
Next year, many of the smartphone manufacturers will have to reassess their position and take decisive actions to respond to the powerful advance of the Apple-Google "duopoly".
Probably the most dramatic fall has been that of BlackBerry smartphones which accounted five years ago for more than half of the US market. Now BlackBerry smartphones have around a one-in-ten share of the US smartphone market.
However, NPD notes that Research in Motion has made some "important incremental improvements", with the release of BlackBerry 7 OS for example, as it looks to reshape its range of products as well as users' expectations.