Earlier quoted context omitted.
Sprint and Google have been very friendly recently[1], so it could just be an exclusivity thing. What I'm more curious about is why none of Sprint's other, more recent Android phones have NFC in them- I just picked up a Photon yesterday sans NFC, and I'm led to believe that the EVO 3D and the Epic 4G Touch don't have it either. (Which is particularly weird for the E4GT, because the other Galaxy S II variants in the U…
It's pricey and often complicated to incorporate NFC at this stage. The phones that have it so far are more like experimental/reference platforms than anything else. When NFC is available on combo chips it will be everywhere, and manufacturers are just starting to commit properly now - Samsung and Acer have indicated all their future smartphones will have NFC within the last few days, BlackBerry is going the same way…
Also their recent accessories support bluetooth pairing with NFC, with single tap.