Ordered a Crystal Clear protector after work on Thursday - got it through the letterbox 9am Friday morning (sweets included - yay!). Instructions were straightforward and once applied is pretty much invisible. Unfortunately I got a speck of dirt on the underside of the protector and tried to remove with my finger - should have read other reviews more closely and would have known you shouldn't touch them. However, it was only on one corner so didn't stop the protector doing its job or looking too bad (I do so want my new iphone to stay pristine and shiny!)
A day or so later, I got a very nice email from PhoneDevil asking if I had received my Magic Screen Protector okay and thanking me for the order. I replied to say I was very impressed with the service and that I'd been a bit heavy-handed applying it but that it looked good apart from that one corner and I'm sure would do its job. The brilliant customer service guy replied to say he was sorry I'd had a problem, gave me a top tip for application - 'I recommend using sellotape in that situation, its very effective...just don't touch the sticky side of the protector as skin cells are pretty stubborn to remove!' - and said that he had sent a replacement in the post. How's that for service?
Brilliant!PhoneDevil Magic Screen protector: Crystal Clear (invisible) edition - For Apple iPhone 3G & 3GS