I presume from what I've read/seen, ApplePay will be app-only (i.e. iOS) for launch. But I've got to imagine they (as in, Apple and Stripe) will integrate with web-based payment forms as step 2.
Or, should I say, "I hope"...
Or, should I say, "I hope"...
Or instead of NFC, maybe the phone is linked to Safari through a bluetooth connection and works with a specific Javascript API.
All of this, is of course implementation dependent. And at the moment, I won't think that we have enough information to rule it out.