More Bulging and Exploding Batteries for Apple laptops

Today 1 week after I upgraded my Apple 17" macbook pro 2008 I noticed my battery was running hooter than normal and then I noticed the laptop not sitting properly on my desk. Popped the battery out and say that it was bulging. Looked on the apple store for an A1189 replacement battery and I found all many other folks with the same issue.

What the heck is apple doing with these battery issues?