In sync with the iPhone 4 unveiling itself, Apple has posted an FCC filing for the hardware that hints at possible international expansion. The phone not only has the requisite 850MHz/1,900MHz North American and 900MHz/2,100MHz international bands but also an 800MHz band. It isn't listed in Apple's official specs but would let the phone work on Japan's NTT DoCoMo, implying a possible expansion beyond SoftBank.