Another good example is not needing to type in codes to get Store bought DLC and the like in.
Woah.
I have it on authority that one major retailer attempted to sell downloadable games via codes - but stopped because it confused the customer... seriously.
Imagine if the "media" for the download was a "card" that you "load" by setting it down on the controller for a few seconds.
Is this technology cheap enough to use on a disposable basis like this?
Yes at Volume.
The dumbest ones that could just store say a number and are passive can be gotten individual for about 7ΒΆ. That price can drop dramatically, by my understanding, with volume. Plus that number is a little old.
You can also embed it into objects like Skylanders does. Imagine buying a figure of Bane to Unlock your download of the Newest Batman game featuring him.
Lets take another example. Let's look at Street Fighter. Character DLC could be bought straight or buy a figure of the new character, put it by your tablet, and the game does the necessary leg work. Plus they could take it the Skylander step and use a more expensive chip that would allow you to save your customization to your Ryu figure. Then at a tournament you take out the Ryu figure, you've probably customized appearance for, set him by the reciever, the game recognize it, and loads up your data. You got your custom stick, your mascot, and all your settings.
Here's an even more interesting scenario to consider. Nintendo could decide to switch there internal inventory system to use this tech, one of its original designed uses, and embed into a 3DS cart one of these, though it probably be at the case level. You then be able to place your 3DS Cart collection just on the Tablet and it would suck it into the Wii U to register with Club Nintendo.
I know all of these sound silly, but its a more engaging way to get digital content from physical medium.