An NFC chip. Apple already has Passbook - imagine if that were NFC-enabled. I want to be able to use my phone to enter my home and workplace, to board transport

An NFC chip. Apple already has Passbook - imagine if that were NFC-enabled. I want to be able to use my phone to enter my home and workplace, to board transportation systems, and to pay for everything. And it isn't as if I would have purchased an iPhone if they had included NFC, but more that Apple has such a widespread and mainstream user base and such collaborations with Passbook-supporting businesses that "NFC everywhere" might stop being a dream.