its not too common, outside of the group thats willing ot do it. There are various forums dedicated to it and it seems ot be alot of people doing it but overall, its not as common but still a niche area thats big enough.
There isnt any common apps that will do it. The general "stupid computer user" isnt going to accidentally OC. Most people do it via bios (the safest way) and well...80% of computer users probably dont even know what a Bios is or dont care to know
