In the end of the playthrough, depending on which choices you made, it said he returned to vegas.....
The obvious question to me at the time was where? after ages spending time searching the strip looking for him it dawned on me that they lied.
Wouldn't it be cool if they sent him back to us? If not as a companion just as an entertainer at the tops? it would be nice to have a memory that i wasn't the only survivor of the Sierra Modre.