I went by the Spectrum for lunch, and the line to get into the Apple Store for the new iPhone was still stretched past several storefronts into the nearest courtyard, right up to the fountain by the carousel — even though they’d launched that morning. Actually, I had several co-workers who were late today because they went down at opening for the launch.
From what I hear it was fairly chaotic, at least in the morning. Apple’s new policy of making you activate the phone in the store was causing delays, especially factoring in the fact that iTunes’ servers got swamped. That would explain why the line was still so long several hours after opening.
Usability note: One of said co-workers got tripped up trying to sync music to his new phone, because the default is to not synchronize music, and the “Sync only checked songs” box looked close enough to being the right option that he didn’t dig deeper.
Since I was going to the 
When I walked by the first time, I only noticed the line running to that corner you can see at the end, maybe 3 storefronts down. About 10 minutes later, after stopping at Kelly’s Coffee, I saw that they were wrapped around that corner, almost the entire length of Forever 21, and stopped at the edge of the patio for the restaurant next door.