I'm not too concerned about this. Seems odd, sure; but given its ability to upgrade automatically (through the magic of "SpotPass"TM!) I imagine one morning we'll all wake up, open the 3DS, and see a notice saying, "The eShop is open for business!" See, Nintendo isn't keeping features from us. They're merely dosing them out in increments, so as to add to our future enjoyment.
And yes, I've drunk the kool-aid.