Italian carrier tweets Nokia Lumia 920 is coming November 12

In the US the price in Euros usually becomes one in dollars, as far as electronics are concerned, so we are likely to see it here around the $600 SIM-free, which is inline with the typical flagship smartphone pricing when not on a contract.
In any case, things are shaping up for Windows Phone 8 - the grand unveiling with a few new features thrown in, is expected Monday, and phones are to hit shelves a week or two later. We will be blogging the WP8 event, so tune back in on Monday for more info.