Sound like we're an early version of Oz.
Sure, though, that was 8 years ago too... obviously bitcoin doesn't fit exactly into his model, with no need for a central formal central authorities, even for money creation. Of course, there is also the question of how early it is... from smuggling, to simple people doing odd jobs for each other for cash or trade, many levels of underground economy have existed for... well... for as long as someone else tried to claim there was a distinction.
There is so much room for experimentation, it will be interesting to see what people come up with. I am already liking some of the initial ideas.