Unfortunately, Portable Galactic Empire (Expanded Edition) is out of print. That's both good and bad. It mean's we've sold all of our copies (Yay!). It also means we don't have any more to sell just now (Boo!). We're working to rectify that, but given our current budget situation (waiting on sales from Fleet Admiral), new copies will be delayed.
Unless I win the lotto. In that case all bets are off.