iPhone owners are the single largest source of mobile WiFi data traffic worldwide, particularly in the US and UK, according to AdMob.
In the US, the Apple handset represents 50.6 per cent of all requests from handhelds of any kind, followed by the iPod touch, which accounts for 28 per cent of the requests.
The best non-Apple device, Sony’s PSP, only manages 13.1 per cent of this traffic.