All the screens you've probably seen are in game. (most likely). Here are some supposive screens from game "2 days to vegas"

http://www.eluid.org/gallery/categories.php?cat_id=54


Edit: Here's a page with a few screens and an interview with Phil Harrison ... he says that the demos they were playing were all real time..wicked. http://www.eurogamer.net/article.php?article_id=59243

Edit again: Here's a screen from the game Gatway (er something)

[quote][16:04] jamer123: GRRR firefox just like quit on me now on internet exploder[quote]
...
[quote=!King_Amazon!]notices he's 3 inches shorter than her son and he's circumcised [quote]