There has been much made lately of the tech sector's newest favorite buzzword: cloud computing. Like many such newly-minted terms, there is some dispute about its actual definition; I wrote about one such permutation in a previous entry for the C3 Weekly Newsletter when the MacBook Air was about to be unveiled at the Macworld conference in January. In it, I conflated the terms 'cloud computing' with 'ubiquitous computing', but in retrospect I should pull the two terms apart somewhat. They're still linked at a very basic level -- both cloud computing and ubiquitous computing hinge on the idea of decentralization, which I'll get back to in a bit -- but by attempting to distinguish these two terms, we begin to gain a clearer idea of where our digital culture is heading next.