Last week NIS America said that pre-orders for Hyperdimension Neptunia would go live this week, and go live they have! You can pre-order the game through their NISA store, thus securing you a fancy deck of cards as the special bonus, but keep in mind that these cards are limited to 1000 copies, so once they're gone, they're gone.

Otherwise, the premium box is the same box you can pick up at GameStop. The difference here is that the NISA store is now offering a free shipping option, if that kind of things excites you.