More than that, I'm interested to know if its even stable. Try running prime95 torture test. Also particularly interested to know the temp.

IMHO, overclocking laptops might be worthwhile if you need something done fast, but only for short stints (not for gaming though). The temp is scary man..low temp solder on components might even be starting to melt already..

Can, I've seen people do it on the web (google around). Usually will have much shorter battery life, and hardware modding is usually required, which voids warranty for sure. But sometimes its worth it-the few cases I've seen included a few low end PDA when OCed matched a high end PDA.