I hope they keep their tricks a secret until BFL starts building the PCB's and commits hard money to completing their project.
I doubt at that point any BFL customer will get their cash back.
Josh can correct me if I am wrong about this and tell his customers that they can pull their cash out of this venture at any point (without limitations) prior to shipping.
Even they have legitimate reasons to keep the spec secret, there is absolutely no reason to keep the tracking number secret.
Doesn't having the tracking number give you access to the recipients address? Perhaps it's for privacy.