I had the same text as part of my course back in 1995 (I think everyone did), and am quite taken with some Matt's ideas here, in particular, the term "Thingfrastructure".

I'm not sold on the cutsey look, or the metaphors they've chosen, but still: this is the future of business cards right here. I look forward to being able to get a grown-up variant on this.

This is the best insight into the nature of gaming I have seen in ages. Whether you're a PC gamer, tabletop gamer or LARPer, I cannot recommend reading this highly enough. If you run RPGs, and are not devoting a significant chunk of your time to ensuring that a variation on this is the experience your players get, then you are doing it wrong.