There was some discussion of item 1 in this thread:
http://www.internettablettalk.com/fo...428#post110428
I believe the final conclusion was that it takes two fingers or a double-tap to get the finger keyboard up now, and it seems quirky so may be a bug.

p.s. It seems really flakey... a single finger press was working for me a minute ago in the Notes app, but now all I get is the stylus keybaord.

Edit: as always, you can still switch keyboards with the center button of the D-pad.