this, i think, would make a great km farewell. and i hope they are smart enough to use it as such.
sure, postmodern blurring of reality/fiction is a tad old hat in this millenium, but it is a huge thematic leap for the usually thematically-challenged creators.
the important part of km (and lg15) has been the development of the medium. really, the plot has always hinged on the vlogging/vocumentary style of delivery -- even if the dependence on this style has hampered plot development and strained credibility and suspension of belief.
to have gavin walking out sight of the camera -- the sole point of reference for the km/lg15 "reality" -- identifying the drama as nothing but "an internet show," is to have the creators speaking thorugh him, essentially saying "the gigs up. we've created a reality as strong as any other fictional medium, WITH a whole new medium. and that was the purpose of the whole game."
in short, they are summing up the success of the series -- the proving that internet drama can work and is, for now, the next wave in popular entertainment -- by admitting that the medium is the actual story.
leans a bit heavy on the mcluhanism of the mid-sixties, but it serves the purpose quite well.
mcluhan's "the medium is the message," theory is pretty simple.
i hate to quote wikipedia, but i'm in a rush, so:
"He pointed to the light bulb as a clear demonstration of this concept. A light bulb does not have content in the way that a newspaper has articles or a television has programs, yet it is a medium that has a social effect; that is, a light bulb enables people to create spaces during nighttime that would otherwise be enveloped by darkness. He describes the light bulb as a medium without any content. McLuhan states that "a light bulb creates an environment by its mere presence." "
look at gavin... he's waving around a light bulb. "here's your kate modern. and here's your lonelygirl15."