This from a reader Mike:
"I own a 17inch Macbook pro (not core 2 duo) and I recently had one of the cells on my battery balloon to about twice the normal size. The cell forced the cover of the battery to pop off. I took the battery to the Apple store today to have it replaced and they seemed in a hurry to get it out of public view so as my "genius" went to get the replacement I took some photos...The Apple nerds said they had never seen anything like it."But what about our other readers? Is anyone else experiencing inflating Macbook Pro batteries?