How reliably can I expect the RT to arrive on 10/26?

Main reason I ask, is I am trying to decide if I should ship it to my workplace, or ship it to home. (I am going to pre-order on Friday)

If it is pretty reliable (based on how other device pre-orders ship early) I want to send it to work, so I can unpack it here and set it up before I even get home.

Otherwise, I will ship it to my house (where if it requires signature, no one will be there to sign, nor do I want it left on my doorstep for too long).

Anyone got any rough guesses. I know its all guessing at this point, but how much can I rely on previous practices by other hardware manufacturers?