If there was 3G on the iPhone, I could possibly find space for it in my gadget bag. As is I already have every single functionality that it can provide and much , much more between my N800 and my N75.
On topic, those adds are great and do so much better than the Nokia ones for a simple reason, they make it clear what you can do with the device...simply. The N800 and N93/N95 ads are great and all but really don't show you practical application of the abilities.

But as cool as the ads are I will probably wait till 2008 sometime to do a N900 and 2G iPhone upgrade from my current setup.