I think so! It replaced the full body invisibleSHIELD by Zagg that I had on my black iPhone 3G- which I had on for only 2 weeks.

What I like about the the Gadget Guard is that it's not too thick like the invisibleSHIELD. However, it still provides comparable full body military-grade protection for your iPhone 3G. Another thing is that even if the invisibleSHIELD was applied correctly on your iPhone, I immediatlely noticed that the finished look of the Invisible Gadget Guard was smoother, with little to know application flaws.

Lucky for me the Apple Store in one of the malls near me (Glendale Galleria. Glendale, CA) has a Gadget Guard kiosk adjacent to it. I bought my set from them and they installed the Gadget Guard for me on my iPhone 3G right there on the spot- even though it is easy enough to apply yourself. And although the protective film is also resilient to scratches, they wlll still replace the full body film should it peel or scratch at any time. For me, instead of getting it replaced by mail, I can simply just go back to the guys at the Gadget Guard kiosk at the mall and get it replaced. How convenient is that?! Awesome!