Smartphones now represent the majority of mobile devices in the, US ahead of basic feature (or "dumb") phones, according to analyst outfit Nielsen.
The Nielsen bean counters reckon that as of March 2012, 50.4 per cent of American mobile subscribers have a smartphone, which is up from 47.8 per cent, at the end of last year.
The company noted that Apple was the most successful smartphone vendor in the country, and Android the most prevalent operating system.
In fact, Android holds a 48.5 per cent US smartphone market share, with the iOS not miles behind, on 32 per cent. RIM is in third place, but could only muster an 11.6 per cent share, and the picture was just as bleak for Microsoft.
Particularly Windows Phone, which only managed to secure a paltry 1.7 per cent, with Windows Mobile on more than double that, with a 4.1 per cent market share. This is not good news for Microsoft, which is currently attempting to crack the US market with its new OS - although the firm has hit further troubles with the Lumia 900 launch bug (now cured).
Nielsen also noted that 50.9 per cent of female mobile owners carried smartphones, marginally more than men, at 50.1 per cent. Smartphones were most popular among those aged 25 to 34, with more than two-thirds having one in this age group.
The analyst firm further observed that Asian Americans were the top smartphone users by ethnicity, with 67 per cent having a smartphone as their primary mobile.