Just something I was curious about: when the TTW installer is finished, one of the music files it gives you is MainTitle.mp3 (the New Vegas menu music). This is (as far as I could tell) the only file the installer produces that will overwrite one of your existing FNV files... with the exact same file!
Is this a mistake, or was this supposed to be the Fallout 3 main title music (which is not used at all in TTW as far as I can tell)? Or am I missing an obvious reason for the installer including this file in the "bundle" it creates when finished (that you copy into your FNV folder to finish the TTW install)?