Given that it's Apple's biggest rollout ever of an iPhone, it's actually fairly impressive that the iPhone 5 is now listed as "in stock" across many countries (United States, Canada, Mexico, Australia, and New Zealand, to name a few). Toss in the whole "holiday season" thing, and it's crystal clear that the company has its supply chain humming in impressive fashion. Up until now, Apple's latest phone was showing some sort of backorder -- typically three to five days -- but those who appreciate instant gratification can get a