Okay, where do I start. Basically I've had a 32gb ip-4 since launch, and had invisibleshield on both the front and the back, with a bumper from 2-3 days after launch. (I'm OCD about protection...figures) anyway, earlier today I took my phone out of my pocket and noticed an indentation on the invisibleshield (anyone that has one installed probably knows what I mean; sometimes things can 'indent' the film, which isn't a big deal since it fixes itself in a few hours. I'm guessing while in my pocket something pushed against it (I don't remember this happening, which means it was probably insignificant) This however caused me to notice a further problem. Beneath the invisibleshield, right where the indentation is, are what look like small 'chips'; the glass looks like it's literally had small (and I mean very small) parts of it removed. Since this happened only recently, i've yet to take off the shield to confirm it's actually on the glass itself - but from what I can tell, it seems to be. I'm going to wait a bit and see if the shield 'buffs out' again. Now I don't really know a whole lot about glass, but if this was something that was caused by pressure (as the indentation would suggest) wouldn't the screen be cracked and not chipped? Is that even possible through the invisibleshield? Finally, if my fears are true and it is on the glass. What options do I have? I live in the UK, and obviously my phone is still within warranty and the 30 day return period. But at the same time I have a feeling it won't be a free replacement. Apologies for some of the incoherence, I will fix later!