It isn't the technical numbers, what make the iPhone better than the rest.

The hardware itself isn't the best and the software isn't as open as something else. But what you can do with the iPhone, works really well.

But I must say, N900 looks really interesting now and I think this is the hardware and software what I expect from the N810. N900 looks like a toy for the Linux stuff and testing, iPhone for productive datas which are very important for me and my work (contacts, calendar, 1password, online-banking tool, notes...).
So I can't and don't want to replace everyday a new systemimage with my iPhone. I want to and I do use my iPhone to help working faster.

That's the reason I call N900 my "toy". If it doesn't boot because I try something, it doesn't matter and don't hurt me to be productive next day.