Skyrim is a direct sequel of Oblivion [http://www.huliq.com/10177/bethesda-unveils-elder-scrolls-v-confirms-direct-sequel-oblivion]
Skyrim has dragons [TES Twitter]
Skyrim will be available on PC/PS3 and Xbox 360 [Game informer]
Skyrim is Single Player. [Game informer] [http://www.gameinformer.com/games/the_elder_scrolls_v_skyrim/b/ps3/default.aspx]
It will use a New Game Engine
And Skyrim will be released on the 11th of November 2011 [Trailer]
The game will Retail at 59.99 USD on all platforms [Gamestop]
Retail at 39.99GBP for PC and 54.99GBP [Game UK]
inconstancies here however currently Gamestop is the only recommended retailer on the main site.
Now, that's the summary of what I know, does anyone have anything I've missed?