Big numbers != better

Yes, Gecko engine works very good on N8x0, but the user interface is - sorry to say this - awful on N8x0 compared to iPhone/iPod touch.

And yes, without jailbreaking the iPhone/iPod isn't comparable with N8x0.
Jailbreaking is very easy with QuickPwn, even with Windows. It takes ~10 minutes and then you have Terminal, OpenSSH server/client, tcpdump, compiler, apt-get, shell, python... and jailbreaking doesn't break the interface developed especially for this small type of device when you only want to surf the web, write mails, organize with a full PIM, listen to music and so on.
The saved files for contacts + PIM are standard SQLite files and you can copy/access this files with SSHFS or WinSCP.

I always wanted a Linux pocketable device. Then I see I always wanted a Unix pocketable device and got - after 10 months with N810 - an iPhone. One device fits all - sad that Linux doesn't fit as well as on my Desktop machines, but OS-X is Unix enough for me.

From the hardcore developers view (Kernelhacker, homebrew GUI), every N8x0 beats the iPhone/iPod touch.