While everyone is following up His Steveness as he booms everyone with Leopard, the AppleStore is now down. Could this mean new hardware? Holographic displays for the new "holograph" mode in iChat? Magic teleporter with polarity inverter? Ninja sex-bots at last? We can only hope.
It may be just be pre-orders for Leopard, who knows. In any case, we will see really soon now.
Update: The keynote is finished with no new hardware. The AppleStore is still down, so it's probably just for Leopard pre-orders.
Update 2: It's up. Changes? Yes: new Leopard look for the store and the whole Apple site.