You miss the point of the iPhone completely. It whips the ass off Windows Mobile because of its seamless integration. Everything Just Works. There's the AppStore, right there, so you have a one-stop-shop to get all the add-on goodness you could possibly want - no more web-trawling to find a half-baked PoS app. The thing shifts to landscape because it can feel that's what you want - no pressing buttons or configuring. The network knows you'd prefer to use WiFi rather than 3G so it connects silently and pumps your data that way.
The iPhone is the most 'personal' personal computing device I've ever used and hands down wipes the floor with Windows Mobile, even despite the feature limitations. I just ditched my Windows Mobile 6.1 device and haven't looked back.