@safiuddinkhan I don't think it's that easy. True, they use whatever OS came with their device, but most take the OS into account when choosing what device to get. I can't imagine a person who wanted an iPhone, but then went to the store and got an Android device. If they decide to switch, they do it before going to the store. So if most laptops come with Linux they just might look for the ones that ship with Windows.
@m0xee @safiuddinkhan
Most people get iphones for the camera or status.
Had I told my mom that my cheap android can record calls (unlike her $1200 imonster) earlier she'd reconsider.