First post - so go easy - especially as I'm starting with a possible whine... I have the new 13 MBP. I've noticed that there is a little bit of give in the bottom case at the centre. The edges are fine - they're solid. It's just right in the middle there's about 1mm of springy movement which stops when the pressure causes the case to hit the innards. It's quite springy - almost to the point that it feels like the case might not withstand normal usage. I notice this when picking the machine up and I guess that it is due to the redesigned case not having any support where there used to be the battery comprtment... Anyone else have this? Should I bother?