I visited four Verizon stores today, three corporate and one non-corporate. Two stores gave me the "its coming out soon" account without any hint of acknowledgment in response to my suggestion of 12/15.
The third stop, a non-corporate store (Verizon log, one employee) confirmed Dec. 15; said they received an email this morning and she offered to show it to me. I read it; it had a two-sentence line that stated that the phone would launch on Dec. 15 and that a "bunch" of phones would be available. The employee identified the person who sent the email as the head of her regional (non-corporate) division/company. (He was not a Verizon manager, and I don't know the name of the entity that owed this store -- which again, has Verizon stuff (only) and appears from the outside to be like any other Verizon store).
At the fourth (corporate) store, I stated that I was prepared to buy on launch date but needed to hold the phone, or if not, its case, to get a sense of its size, as that was my only reservation. She brought me a demo phone, not activated, in a thin silicon case and let me hold it. It's a tad bit wider than my dream size. (Looks like I'm going to have to get used to it). I did not press her about the date after the email visit, but my suggestion of Dec. 15 was received with a wide smile, as was my stated intention of showing up on Thursday when the store opened. (I know, that doesn't mean much).