My current PDA is white and I write on it with a stylus (made by PaperMate). It folds up really small and I never have to charge the batteries. However, I miss the functionality of my TH55 - which I have yet to repair.
Just discovered StyleTap... does anyone have any experience of using it? I wonder how well it works on the iPod/iPhone and how many of my Palm apps will run under it.