Had my first Kernel Panic with 10.8 Mountain Lion. Had lots with 10.7.4 which resulted in a downgrade to 10.7.3. I'll see how the next few days pan out but I'm losing the spirit Apple at the mo.
Never had one of these on any apple product. I've used quite a few. Got a macbook pro ATM 2012 edition. Works like a dream.
I'm tipping it's a hardware issue as others have said. Best of luck!