I've had my white 32GB iphone 3gs for about three months. I noticed this week that in both my phone and my son's, there are tiny cracks in the case, extending from one of the jacks to the edge - just a millimeter or so. Has anyone else found this? My son's screen has become touch-insensitive, so I'm taking it to the repair place in Kowloon tomorrow. I'm concerned they're going to look at the crack and claim he must have dropped it, which he hasn't - it's always been in a rubbery protector case anyway - and I've read online that last year a lot of people complained about cracks in iphone cases - particularly white ones. Has anyone else experienced this? Thanks.