Card emulation on Galaxy S3 olympics

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http://forum.xda-developers.com – Just read this article http://global.samsungtomorrow.com/?p=16659 The interesting thing is that they must have been using the hidden API to be able to use card emulation. From my experience with hotel nfc cards they often are Mifare UltraLight cards. Maybe they are giving out special phones using a custom ROM made by samsung that has this enabled. I'm currently checking the 4.1 sources to see if anything can be done with that. So what do you guys think about this? If someone with access to this phone could dump the rom it could be easily checked with the current S3 and see t (HowTos)