Well as far as the battery goes, here is a picture of mine.
You may not be able to see it as well but the back over is bulging up away from my console. I was able to slide my thumb nail in between on that side where as by the gamecard it is impossible. My console was not bent at all though, as it was flat on the face (screen) side perfectly. It worried me because of the battery location and previous experience with bulging. This is what I feel most people are now noticing. So either it's normal and my battery was fine, or there is a possible case of bad battery batches.
You may not be able to see it as well but the back over is bulging up away from my console. I was able to slide my thumb nail in between on that side where as by the gamecard it is impossible. My console was not bent at all though, as it was flat on the face (screen) side perfectly. It worried me because of the battery location and previous experience with bulging. This is what I feel most people are now noticing. So either it's normal and my battery was fine, or there is a possible case of bad battery batches.