Is it possible to establish connection between Galaxy Nexus Jelly Bean (4.1.1.) mobile and any regular desktop contactless reader (ISO 14443 A/B)?
As I know, android does not support card emulation mode, so it should be done only by p2p mode. Is p2p based on ISO 14443, so any reader can be used, or it needs also a specific NFC chip, not the standard ISO14443 chip used in older readers?
The answer to your first question is yes, the GNEx should support ISO 14443 A/B.
I'm not sure what you're asking in your second question, but I can tell you that one of the readers must be of one of the formats listed above.
No, Android can do NFC peer-to-peer communication (a.k.a. NFC-IP1, ISO 18092). As of Jelly Bean (4.1), this will happen on 212 kbit/s. (Previous versions of Android also supported 106 kbit/s, unless Google Wallet was activated on the device.) NFC peer-to-peer at 212 kbit/s uses FeliCa modulation (not ISO 14443-A modulation), so probably not all ISO 14443 desktop readers will be able to support it.
来源：https://stackoverflow.com/questions/11831651/galaxy-nexus-4-1-1-and-iso14443-reader