I have 3 units with Boxwave protectors (2 Anti-Glare and one Crystal on 2 770s and an N800—the N800 is Anti-Glare) application isn't particularly hard, it's just a little time-consuming. The good news is that it's easy to wash off the dust/dirt/fingerprints and try again if you mess up (and I did, a lot . . . damn dusty house ). The one side is adhesive, but it's the sort of adhesive that's easily cleaned in water and doesn't wash off (sorta similar to those sticky-hand toys). See my post on page 2 of the thread here for more details.*

No, I couldn't perceive a difference in brightness between the naked and the protected screen on my 770, but, personally, I'd go with the Anti-Glare. The glare reduction is really useful in a lot of different lighting conditions (especially outdoors and in some overhead fluorescent conditions), and the texture is spot-on perfect (sorta like smooth paper). You wont notice the incredibly minor brightness reduction, either (it is incredibly subtle), and even if that did manage to bother you, the glare reduction more than outweighs it.

Not so far as I could tell. I went from the shipping protector (after 6 months ) to the Boxwave protector without trying the touchscreen naked, but I didn't notice any drop in sensitivity between the shipping protector and the Boxwave one.

*If you decide to go with the Boxwave and end up following my steps, think you could take a few snapshots for me so I have some images to go with my howto?