Bert, for the past 5 years I had used the best windows mobile phone available. It didn't matter what is was I had it. My last one was a Tilt that ran windows mobile 6.1. I had to reboot the thing at least once a day. But more than anything, the browser stinks. I was able to download the webkit based SkyFire mobile browser and it made the phone bearable.
About 8 weeks I switch to an iPhone. This is the best mobile device I have ever owned. Notice I said "mobile device," and not phone. The user interface is magnificently intuitive. The software is stable, and the browser is excellent.
From my iPhone I can remote, I can ftp, I can send/receive email, and just about thing IT wise I need to do.
So what is it missing? It's missing the higher resolution screen of the Sony X1