1. Tangible proof to this claim please?
2. I stay away from refurbs too but my wife's had an iPhone refurb for two years with no problems. If he gets the refurb I would suggest paying for the phone insurance.
3. Again, tangible proof please? I've only ever heard people say this and have yet to see any photographic evidence, technical documentation, or true side by side comparison as to the differences. Not saying I don't believe they changed it, but I want some real evidence. My D2 keyboard is just fine and I really like it but I'll admit it needed a little breaking in. After that period, about two weeks use or so, it types really nicely.
As far as using the touchscreen more often, I think it's personal preference. The touchscreen in portrait mode is way cramped and I can not deal with typing more than a couple of words or a web address. If rotating to landscape, well then you can just as simply slide open the keyboard. I find myself using the physical keyboard far more often than the touchscreen. I also like how holding it is also more comfortable with the physical keyboard out and I also get to see the full screen.
Rev.