We recently pushed our first two patches. Very small but hopefully they'll solve the issues mentioned below.
Changelog
1.0.0.1
Removed unhelpful config files so that players see the first-time configuration wizard. This solves an issue where display settings could be incorrectly configured. To see this wizard after the first-time launch, add "-changevideo" to the Steam launch options or game shortcut.
1.0.0.2
Fixed a bug where players would be unable to save games on drives with more then 2TB of free space.
Fixed a bug where the game would not recognize hostages in the Battery Park subway station as being saved.
Updated default settings for D3D10 for players looking to use that renderer.