Also managed to get a chance to play on one of these the weekend.
Initial impressions were, wow, how can something make the 13" Air feel comparatively heavy? It's stupidly light, and if I were a Uni student or similar, I'd not even know I was carrying it around in a rucksack. In some ways, it's a frightening thought!
Also, I instantly felt the keyboard was absolutely fine. It doesn't look like it should be, but I was happily typing away, even at the dodgy angle I was standing at.
The force click... eh, I don't know yet. I went over to the Air immediately after and the physical click is just so much nicer. Perhaps it's something I'd get used to.
The pick of the bunch, of the entire Mac line up, has to be the 13" Pro for me. Seems to be the perfect combination of performance, portability and quality screen.