[citation][nom]nebun[/nom]this is a really bad idea, especially with Sony's bad security record....thanks but no thanks[/citation]
Here in Hong Kong I have an Octopus keychain (FeliCa-based) I keep in my purse and I have to take it out every time because the purse is too much material for the signal to get through, even when it is at the very top of it (1 layer).
I would love it if more tablets and smartphones got FeliCa (like the Nexus 7) rather than NFC (NFC is nice though) because it is already a standard in Asia.