Anyway, anonymous encrypted P2P is just a few years off (and encrypted BitTorrent is already becoming ubiquitous). More interestingly, our cellphones are increasing in capacity dramatically. When P2P debuted with Napster in 2000, the average hard drive was the same size as my cell phone memory is today. Using technology already available, BlueTooth 2, I can share content from my cellphone anonymously - say, in a café or so. This will probably just accelerate, with cellphones being more and more capable, holding more and more data, and opening up to customized applications.