Actually, I was referring to the fact that I'll likely use the iPhone as a secondary device, once I can get it working. I agree that having an N95 as a secondary phone would be overkill, since the void between the N95 and iPhone is handled by the E90, which is my primary device.
However, while the E90 is probably the greatest business tool and full-featured smartphone I've ever used up to this point, I also have a couple of iPods for my real media consumption, so the E90 would at best just be to keep a few of my favourite tracks on for listening to when I'm on the go... Would probably more or less replace my iPod Shuffle for this purpose.
When I don't want the E90 with me (going out for a night on the town, for example, or just going for a walk), I presently take my RAZR V3i with me. The iPhone will likely replace the RAZR for this purpose once I can actually get a Canadian version (the version I have right now is mostly for research purposes, and it would be too expensive even to use it as a casual phone, since it's activated on AT&T).