Yup. Basically the computers way of saying wtf is going on, I have to shutdown. Sometimes it happens because of bad hardware, other times it's software based. Bad Ram and 3rd party drivers are a common culprit. Kernel Panic
I had to return mine and request a replacement due to KP. Mine was a hardware issue since I erased the drive and reinstalled OSX and it happened again. I was within my return period.
I listed my KP report on this forum and got some suggestions but eventually it was a hardware issue. First thought it was Dropbox (according to report) but had panic after uninstall.
When I didn't know much about KP (since coming from PC), it took me 5 days to do a time machine with my TP.
I also had KPs on my machine using Safari before the update came out in fall 2010. Now Safari runs fine, but then again I use Chrome and FF4 for most of my browsing anyway.
Now we're talking.
i've had a week old mbp 2011 quad core n i faced those KPs n im having a replacement.
honestly im freaking out, thinking what if the new one has issues as well