I compared the Iphone and the N900 some weeks ago too.
And I was really impressed how many nice games and apps are available on the iPhone.
But other then that, the N900 is so much better IMHO, querty, much better screen, much better OS, much better cam, much better browser, much more customizable ....
But still, the iPhone is a cool device if you want to have a ton of nice games.

My sister has an iPhone and I never was able to use it. For some reason the screen didn't like me so I ended messing all my taps.

After my short experience with a shuffle (5-8 years in the past) and hearing my sister complaining about iTunes, buying an iPhone never crossed my mind.

Today, I'm very satisfied with my N900, and I will never think on changing into iPhone.