Wait, you mean Norrington was killed by his own sword instead. Cuz Wil was stabbed by Davy Jones.
Wil won't look like Davy Jones because his love, Elizabeth, is faithful to him. Unlike how Tia Dalma/Calypso was to Davy Jones. He also wasn't doing other things he was supposed to as well. Wil becomes free of the curse in 10 years because of Elizabeth staying faithful to him.
Somewhere I read about the bucket of water that Davy Jones stood in to be on land with Beckett, Wil, Barbossa, Elizabeth and Jack. They then wondered why Wil couldn't do the same to see Elizabeth. How funny would that be, standing in the bucket of water in order to have sex with Elizabeth before the 10 years is up-LOL!
I *think* (but I might be wrong), that Norrington ended stabbed with his own sword (the one made by Will) and that Jones took it along and ended stabbing Will with it (but like I said, I may very well be wrong here, I'm sure someone remembers the sword bit better than me ^^).
Christine, I just had to laugh so much over your bucket comment :)
I think Will passed on doing that, because he's such a good boy that wouldn't forsake his duty