From looking at these photo's mine too could be classed as having the gap on the top right but to be honest if I wasn't purposely looking for it and hadn't been made aware of it I wouldn't have known...and to be honest doesn't really spoil my enjoyment of the phone.
Not to cause anyone offense, yes we would all like a 100% perfectly built phone, especially at the premium price but I personally think the gap issue is being blown out of proportion and we are all spending time looking for issues with our phone rather than enjoying them.
Surely there is more to the waterproofing internally than just the screen being aligned correctly. I for one will still be treating my phone with respect and not dipping it in water to test it's waterproof capabilities.For me it's a safety net e.g. If I get caught in the rain and my phone gets wet rather than using it in the bath or shower.
Each to their own I know guys but i for one am loving this phone, the speakers are fantastic, great battery life and excellent screen .
I decided to get my phone insured anyway just to be on the safe side.