Use Apple Keychain

Why don't you use Apple's Keychain for the Username and Password of Facebook. When you start up the FMenu, you can get then the user/pass from the keychain and auto login. The user had to authorize the addition of the data to the keychain so you are perfectly valid in using that. This situation is what the keychain was designed for, just go ahead and use it.

Sparkle for updates:

The feature request I have is that you use the Sparkle framework for updates. That will allow us to not have to worry about updating and you'll get an auto-update engine for free.