I got the
hori screen protector and I love it. It covers the entire front face with cut outs for buttons and the camera. Here is a youtube video that is particularly helpful:
It was a little confusing at first but the video makes a lot of sense. Just make sure their is absolutely NO dust or dirt on the screen before applying; I got a small air bubble on the corner of my screen because I didn't double check (doesn't bother me) but on my girlfriend's white AC Vita I did a better job and you can't even see the screen protector once applied:
I use this as a permacase:
http://www.amazon.com/HORI-PS-Vita-F...flip+case+hori