NFC's 'tap to initiate' feature can be used for a lot of things--mass transit ticket booths, connecting a phone's Bluetooth to a stereo (I do this), and games.

The popular video game Skylander uses RFID for game pieces with its game device, but something similar could be done with NFC.

Using it to pay for things (mobile wallet) looks like it would be really convenient, but it looks like Isis needs some work:

http://gigaom.com/mobile/isis-in-action-its-pretty-simple-but-no-replacement-wallet/

@JD Blower I think that all depends on Apple support in the US.

Isis will help push ubiquity in the US market, once it's in the phones it will make a lot more sense for it to push the laptops and desktops.  Then we'll really start to see the applications get off the ground. Personally, I'm waiting for my YubiKey Neo to arrive so I can see if I can get 2FA working on my phone in a reasonable manner.  Heck - even just a certificate-length password for certain websites would be awesome!

btw, I do agree with the thought that ubiquity -- having the technology just lying around everywhere -- can lead to wider adoption.  It doesn't always work, but in NFC, I think it will.

It certainly did with Bluetooth. Take a look at Stick 'n' Find, a Bluetooth sticker you place on some object so that you can find it using your phone. They used IndieGoGo to raise funds and are already double-oversubscribed.  (h/t Abner Germanow of Juniper, @abnerg on Twitter).

Blackberry! I'd never have known. (Sorry, RIM, but thanks, JD.)

Regarding the Wii -- yes, some kind of Wii-tapping feature seems likely. If they can find a better way to word it.  :)

Or a way to transfer a game, in-play, to/from a mobile device? If that even makes sense; I guess it would depend on the game.

I think some BlackBerry models have it as well (but I never found anyone who knows what it does on a BB):

http://docs.blackberry.com/en/smartphone_users/deliverables/32608/About_NFC_61_1434186_11.jsp

Apparently HP has an NFC mouse they use for pairing.  I can certainly see the U using it as a "Tap to Play" type of service where multiplayer games are started by tapping your Wiis together (hmmm, maybe their marketing team should look at wording that differently...) or a generic sharing mechanism.

Samsung also has NFC in many of its newer tablets and smartphones. Apple, Motorola and RIM appear to among the real holdouts.

Apparently, NFC is included in the Wii U. The Broadcom guys claim Nintendo isn't telling them what it's going to be used for.

It must have something to do with a smartphone.... importing pictures? I don't know enough about Wii U to make a good guess.