Amazon has its own applied theory of special relativity, in the sense that we never really know definitive sales figures and instead have to rely on the occasional ratio and comparative figure (based upon aforementioned unknown variables) to glean any sense of success. Jeff Bezos and company are happy to announce the latest Kindle has, in its three months or so since release, surpassed sales of the previous device in its 2009 holiday season (the shopping-heavy October through December period) -- in other words, it expects even greater sales for this year's
