Avast! Anti-theft is really useful, but it has quite a few commands. I know one way to get the command list is http://www.avast.com/free-mobile-security#commands. Another is http://files.avast.com/files/documentation/mobile-security-user-guide-en.pdf. You can also see the command list in the app. I think it would be useful, though, to have a command such as 2222 HELP that would cause the phone to reply with a link to the PDF guide. In order to make it as easy as possible on people, I suggest making each of the following commands do the same thing:
2222 HELP
2222 MANUAL
2222 MAN
This will make it as easy as possible after someone’s phone is lost or stolen.