Piezo power switch

[chero]

Has anyone ever used a Piezo switch as a computer power switch? Good idea/bad idea? Would there be any problem when you need to hold down for x many seconds to power off?

http://www.barantec.com/products/piezo-switches

[Mr Evil]

Piezo switches only stay on for a limited amount of time when you press them. So they should work ok for basic turning the computer on/off, but you couldn't do the hold-for-4-seconds thing.