All very good points and the 3G point is something neither of us will be able to concede. Where I live and travel, UMTS 1900 is plenty and where you live it is not (or yet to be proven acceptable).
I do admit that I would very much like a hardware keyboard (even if it's only 3 lines). My first choice after the 5800XM was the N97, but that was until the OmniaHD was announced. I'm still a T9 guy though, so using the virtual T9 with a capacitive screen and tactile feedback is going to be incredible. These are just locational and preferential.
The web browser differences may or may not work out the way you're expecting though. Safari on the iPhone works so well because of the capacitive screen and because it keeps everything else closed while you're browsing (and still crashes on occasion). Given that the S60 browser (even in 5th Edition) still lags consistently doesn't give me much hope that the N97, with MORE running in the background, kinetic scrolling added, and with the same limited amount of RAM is going to be enough to have as smooth an experience as Safari.