I am big fan of Invisible Screen protector. Bought it on ebay from this seller
http://cgi.ebay.com/INVISIBLE-Sprint...item563d206459 I have it on my Touch Pro 2 for 6 months. I have NO scratches or bubbles. This protector does not interfere with the touchscreen at all. I must have tried 5 different protectors. All got scratched within days or start seeing rainbow screen- must be cheap quality. But not with Invisible. And for $7.46 on sale, price is outstanding. I used Zagg on my previous touch pro, and can't complained- it came in a fancy box with a spray, card and cloth. But I paid $20 bucks. I did noticed that with Zagg i had to press harder on the screen to browse on the phone. With Invisible, it responds better. So just a recommendation.
Heads up, with this screen protector, you do have to use water. I am very impatient and I noticed bubbles and my fingerprint...but was amazed that it disappeared by the next day. I hate the self-adhesive type. Because once you put them on- they're on. At least with these type, you can take it off and spray a lil water and place it on til you get it right.