Hi folks Thought I'd let you know that I just purchased an Invisible Shield Max Coverage kit from ZAGG for my new iPhone 4. Unfortunately, it does not improve the antenna issue at all. The antenna membrane isn't large enough horizontally. There is a few millimetres missing on each side, therefore there is skin contact with both parts of the antenna. I'm amazed they released this product without making sure the whole antenna is covered horizontally. When skin touches, even if it is 1mm, the reception is affected. It might look good when you use only the top of the finger for a test such as in the featured video at http://www.zagg.com/iphone-4-antenna-fix.php but with real usage, as in normal cornered palm, it does not. And yes, I did put the membrane carefully as instructed. I tried several techniques and at the end, it does help with reception when you custom cut an unused part that fully cover the whole antenna. Unfortunately, it's very hard to make it fit properly with the flaps and looks horrible. Honestly, when you purchase a product like that you shouldn't have to custom tweak it to make it "work". So that's my experience with this product. I'm very disappointed as I was expecting something much better. That being said, the protective membrane for the back is fine and is, as advertised, invisible Didn't use the front one though.