Re: physical keyboard
"Slidey chocobar phones were peak design."
I went from an LG enV Touch to the Droid 1 slider. While the jump in performance from a feature phone to a smart phone was impressive and the jump from 3G to 4G was great, I was not impressed with the slider and keyboard combination. The enV rotated the screen out of the way of my thumbs while the Droid kept it there like a speed bump designed interfere with the top row of keys.
Your mileage obviously varies, but I miss the flip-phone keyboard of my enV. I've had high hopes for the Gemini and Cosmo but they seem to need a little more refinement.