I'm using it for wireless charging. I picked up a handful of Mifare stickers on Amazon (1k + 4k). 4k seems like overkill for most cases so if you want to play around with it, pick up the 1k ones to start and save yourself a few dollars. So far, the only thing I've done was to create an App Launch field on one of them that launches my online banking app. I stuck the tag in my wallet so that when I swipe my phone across my wallet, my online banking app opens. Used NFC Interactor to write the tag, but it's kind of annoying in that it doesn't let you pick an app, you have to find the app ID. Easiest way I could come up with to find the app id was to go on the store website on my desktop, find the app, and pull it from the URL. I plan on making another one for my car that will launch Nokia Drive when I put the phone in the cradle on my dash board.