there are other people that say they haven't noticed a loss of sensitivity.
but there seem to be a lot of negative reviews from the zagg anyways.
"Very disappointing. I've had a number of friends swear by ZAGG invisibleshield products in the past, so I thought my first touch phone would be a good time for me to be introduced to their product line.
It was on back order until I got my phone, so I got a cheapo screen protector from Verizon to hold me over. I ended up using that screen protector for a month until installing my ZAGG, and it was worlds better.
The ZAGG starts with a pain in the rear installation process. I'm sure they think they have good reason for it, but considering my cheap screen protector was a simple peel-and-stick with zero issues, I wonder what could possibly be gained by the extra, soapy complications of a ZAGG install.
Certainly not responsiveness, as after finally waiting a full 24 hours before turning my phone on again - a ZAGG requirement (12 - 24 hours off) - I was disheartened that all my work meant I had a phone that was LESS responsive, and now feels like someone rubbed an orange skin all over it. The resistance does not feel good on the finger, and does not lend itself to the kind of flicking and finger moving that touch phones otherwise encourage.
I give two stars instead of one because the product does, overall, deliver as advertised, providing invisible front-face protection for the phone. Just much less convenient protection than what <$10 screen protectors will get you"
-best buy reviews