[gyozaking]

One unmentioned deterrent to using NFC on Android (for cases where security is not important) is requiring the user to unlock the phone first. In ICS or later, NFC is no longer enabled at the lockscreen, presumably to address security concerns with the payments use cases.

In some cases, it can be just as easy to unlock your phone and execute an action manually rather than through NFC.

I also wonder if Square's "magical" Starbucks payments system will be future - using environmental cues in the background instead of requiring manual swipes of a phone to a terminal.