Thoughts on the content of the cinematic? If I were to hazard a guess I'd say that the platinum chip is a "magic key" to New Vegas and its potential. It's something everybody wants and something that Benny is more than willing to murder you to get, to further his own power / save his skin / whatever reason. More than likely, possessing it is the only way to gain an audience with Mr. House. Thus it's the classic Fallout Macguffin - you chase it around, get it, meet Mr. House, and through him learn what your real problem is, thus setting the table for the second half of the game.
That's just a guess, though.