Thought I should let others know of my experience of these as there were no other reviews.
Firstly, and most importantly for me, the screen protector does not interfere with the tactile experience of the Hero. As the protectors are plastic they are not as pleasant to the touch but fingers slide over the surface just as easily as the screen and the responsiveness of the screen is unaffected. The plastic stays firmly in place and there are no air bubbles or discolouration of the screen. I haven't had the product long enough to rate its resistance to scratches but it hasn't marked up at all so far through normal use.
Only a couple of minor complaints stopped me from giving five stars:
* Installation was a little tricky. The protector doesn't quite match up with the shape of the screen - the corners are a little too sharp and overlapped slightly, which is a bit disappointing given this is the official product. * The main downside is that the plastic is a bit more reflective than the screen thus it doesn't deal well with glare.