Here's a shot of the Boxwave ClearTouch I installed 30 min ago. It's in bright sun - in normal lighting the edges aren't as noticeable.
Install was fairly easy. I cleaned the Pre with a soft cloth and a drop of eyeglass cleaner, polished it with the Boxwave cleaning cloth, and blasted it with Dust-Off.
The Boxwave protector has two peel-off sheets attached to it, one on the adhesive side and one on the front. Both are labelled to be removed before install. I left the front one on during the install to give me a tab to handle the protector by.
It doesn't quite cover the entire screen - a tiny bit of the very upper left hand corner is exposed. It's not enough to be annoying.
It feels only slightly more draggy than the unprotected screen. Visually it's perfectly clear, no distortion.
The only concern I have is if it will start peeling up when I put the Pre into the tight fit of the Palm belt case. I'm going to let it 'set' for a while before trying that. I'll edit this if it becomes an issue.