The last update to iOS since version 6.0 is version 6.0.1 released on last November 1st. This version fixed a display bug when using the virtual keyboard and another one that prevented the flash of the camera to turn off when taking a photo.
Also Apple is now testing the next major version of iOS, version 6.1,which is currently in its fourth beta and which has been delivered to iOS developer community last Monday.
iOS 6.0.2 - direct download links
Below are the direct download link of iOS 6.0.2 IPSW file (Apple official website):