I have a 2 BTC bounty out. I figured I'd get wider appeal here than on the Armory subforum:
https://bitcointalk.org/index.php?topic=179422.0Please respond there if you are interested. I really don't think this will be hard, I just have too many other things I'm focusing on.
And someone else requested that this be open-licensed, so that it could be shared with other clients. I'd probably request that the end result go out into public domain. After all, it's following public domain spec...