Dent in my TP2!!

[i700plus]

Wirelessly posted (Mozilla/4.0 (compatible; MSIE 6.0; Windows CE; IEMobile 8.12; MSIEMobile6.0) Sprint T7380)

I was looking at the back of my TP2 today when I noticed somthing that definitly was not their when I first got my phone. On the back of the phone when it is slid open if you turn it around and look at the sliding mechanism look at the metal peice to the right of the right slider frame hole On mine right in the center of the little metal peice their is a small dent that looks like it was caused by pressure to the phone while it was closed. The only time I really place any pressure on the front of the phone when it is closed is when removing the battery cover.. I've done this about 10 times at the most and came to the conslusion that nothing else came in contact with this other than the phone itself.

My question is does anyone else notice this indent on the back side of the phone when slid open. its right underneeth the front speaker. and does anyone think that it could cause problems in the future?