Version 0.9: the one with the ugly logo

It's at http://www.amazon.com/Unofficial-Lordofultima-connecting-Lord-Ultima/dp/B00810LYOM/. It's free. And probably worth every penny. Sorry, later versions will be better. Don't hold this one against me, the version isn't even 1.0.

Features and How To Use:

You choose your username, password, and world on the main screen.
(You will log into your first world automatically. If you didn't want that world, log out and then choose the right one.)
After you log in, you can see your unread mail by pressing the menu button. It will show up as just the subject line. Reading the mail won't mark it as read in your account.
On the screen you have 1 window for chat, and 1 right beneath it for incoming attacks. Both should be scrollable.
Type stuff into the chat window and press "Send!" to talk. You may need to say "/alliance" first.
Press "Stop" to make sure you disconnect.

The password is never saved, and only sent via HTTPS. Note that future versions will store your password.
The UI will become unresponsive while reading mail. Sorry, this is completely a bug.
The mail interface is poor; for example, special characters are shown raw.
If you lose network connectivity while loading mail, the mails will just show network errors. Bug.