MacRumors.com

Businessweek discusses the hype surrounding the iPhone and asks "How Big Will the iPhone Be?"

If Apple's goal of selling 10 million iPhones by the end of 2008 seemed ambitious to some back in January when Jobs first unwrapped his new baby, few doubt it now. Wall Street speculation has gone from how much market share it can steal, to how much it can expand the overall smartphone market

According to two Businessweek sources, Apple plans to have 3 million iPhones ready for sale on launch day. Apple revealed through television ads earlier this week that the iPhone was coming on June 29th. Meanwhile, AT&T apparently anticpates large crowds and has reportedly hired crowd control personal at the AT&T stores in anticipation of the launch.

Finally, a few first hand reports (one, two) on the iPhone have been circulating, though the validity of the accounts is difficult to verify.