To trot out a well worn cliche, the only intuitive interface is the nipple. I have recently been sat in front of a Mac; I do not find it particularly intuitive,

To trot out a well worn cliche, the only intuitive interface is the nipple. I have recently been sat in front of a Mac; I do not find it particularly intuitive, and had to ask for hints as much if not more than I would in front of a Windows box (I am primarily a Linux user today, though I have used many OSes in the past - VMS anybody?). What Apple have is a consistent interface. This is the real point here, that if each OS has a consistent interface between native applications, then a cross-platform application will be at a disadvantage because by definition it will be inconsistent with most platforms. This is true to some extent. But these days the real competitor to a native app is not a cross-platform app - it's the cloud. It would be interesting to see some data as to whether people prefer an inconsistent cloud app (say, gmail) to a native consistent app (say their native mailer). Absent any data, I am not sure what can be learned here.