Don’t know about you guys, buy this sounds like a great idea to me! For instance, you have a very heavily-intensive 3D game, and you want to improve frame quality. Grab your handy ice-pack and your iphone charger and fire her up! Of course it will shrink battery life, but just imagine the possibilities. It would be great to even downclock it a couple hundred MHz, and have a phone that stays on for 8 hours!
(I doubt that long, but still...) Would be great to put some development options into this, I’m betting that Samsung ARM processor can be overclocked.