I've always dealt with iphonistas with an expression of mild disgust and a mutter of "Good God! I wouldn't stoop to an iphone!" If you have even half a reputation as geek, nerd or even geek-lite people will look at you in amazement and whisper "why not?" which gives you the chance to talk about how apple have created a seriously wizzy interface and patched it over an extremely ordinary piece of kit.

That's when, ideally, I'd like to be able to say "I use this because..." Except I'm still trying to find out why I should be using an n900 rather than, say, symbian. Apart from the Open Source ethos, which isn't actually a selling point to most people.