I would note that the Wapsidoodle style makes this forum very easy to use on a G3 Blackberry, and I actually have a separate registration just so I can use it. It's easy and fast, and would be perfect if we could drop the emoticon menu, which kind of gets in the way.
I don't use any wine-specific databases or TN programs, although I do use a separate PDA (with Graffiti 2 input) to take down tasting notes on the fly.