well that Android HTC Dream is rumored to be capacitive, but i highly doubt the Raphael or Diamond will be since they have been complete for a while now probably and right about to release. So far i havent seen anyone comment on it, but they look touch sensitive from the demo videos we have.
http://www.coolsmartphone.com/ you guys should really check out this site, the guy has a near release build of a Diamond (just has 128mb RAM and a not final 6.1 build). He answers a lot of these common questions in his daily review videos.
the bottons under the screen are normal mechanical click buttons. the screen is not much better in sunlight than out current ones, but much more rich color- bummer. The 900mah battery was slightly less than the Kaiser by his tests with the same functions running and usage, which is fairly good IMO for such a tiny phone. The 3d UI seemed generally fast from the videos even in test software phase.
Just watch the videos, they show everything the thing can do.