So the Press Event announces that the VZW N1 will be locked. Expect a $179-199 price tag, with 2-yr contract and ETFs to boot! That being said, this is what VZW might have meant when they said they'd have two "flagship" Android devices: 1) with keyboard, 2) without keyboard.
As for Sense, Peter Chou didn't sound very confident about it when he talked about devices updating to 2.1. He clearly said "some devices" will get it. Whether that means CPU/GPU compatibility to 2.1 or the fact that they haven't successfully mated Sense to 2.1, much less 2.0x. I think Google is laying down the iron fist with the "pure Google experience," as represented by the DROID and, now, N1. No more Sense overlay for "pure Google" phones.
Maybe HTC will release an OS2.0x with Sense, but not a 2.1 with Sense.