I like some of the information piling in this thread, but ultimately I have to side with xxxts.

The iPhone can do everything that's required of a modern smartphone, the N900 can't.

Nearly all the things N900 can do, the iPhone can do as well... and usually faster and more practical.

There's bound to be things the iPhone cannot do that the N900 can, which is why I chalk it up to different audiences.

The iPhone is for the 99% where the N900 is for the 1%.
The iPhone is a much much better smartphone, the N900 is an enthusiastphone.

I think its not even possible to debate these anymore. We'll just have to wait and see what Jolla and Android 4.2/5 offers.