To be fair to you I didn't notice it either, it was only when someone here said about it and I looked really closely! Then I just saw lots of other people on XDA had done the same as you guys. 
It was quite a bugger to get it off at first, but once I had the corner up it came off nicely leaving nothing behind.

It was quite a bugger to get it off at first, but once I had the corner up it came off nicely leaving nothing behind.