I have had a couple of devices covered by ZAGG with the InvisibleSHIELD. The InvisibleSHIELD is a good product, but it depends largely on the quality of the installation which ZAGG performs through booths at malls, in my case at the Brea Mall in California. The first device was my teenage son’s cell phone which has withstood his abuse. The second was my iphone. The Zagg installer took two hours to install it, well beyond the 40 minutes they ask you to wait. She told me that she was struggling to make a corner stick and if it came undone just to bring it back. It came undone, and an attendant who was working at the Brea location at about 4:30 pm on July 16, 2010, lectured me on the product warranty covering the InvisibleSHIELD but not the labor for re-installing it which would cost $10. Hence while InvisibleSHIELD provides its product warranty to ZAGG, ZAGG does not cover their installation which may in fact ruin a perfectly good SHIELD. My advice….don’t depend on ZAGG to properly train the installers …the $10 re-installing charge is a margin maker for ZAGG plain and simple. Pretty shoddy…read the fine print.