But, if anyone was using what I originally posted, I've updated it to support compressed public keys as well as generating testnet addresses. It also prints the unhashed public key, which is useful if you're using the key for a multisig address. As before, any aspects original to me I put in public domain, and I sure hope there's no bug that causes you to lose your coins since I'd hate for that to happen, but I'm not going to be held liable if it does.
+100 It's a must! Thanks!
If your Linux box stumbles on "tail -r", substitute by "tac" (thanks to mintymark).
