Facebook's JS SDK allows us to do something like the Tweet Button... pre-populate the status message, use our Application Id, etc. We'd love to use the tweet button like this too but its missing some functionality that we need. The FB JS SDK gives us a javascript callback that let's us know that a status update was posted successfully *and* it gives us the text that was posted. It'd be great if we could get the same kind of functionality from the tweet button.
Adam