Why do companies keep using size-based nomenclature? E.g. Nexus 4, Nexus 7, Nexus 10, Galaxy Tab 7, Galaxy Tab 10?<p>It may <i>seem</i> like a good idea, but if the product is successful, how do you name next year's model? The Nexus 7-2?<p>If the models were only going to be updated annually, like Apple does, then I guess it would work (2012 model, 2013 model, etc). But Google and Samsung both seem to be releasing product updates faster than that, so I don't know how they can iterate without confusing average consumers (Nexus 7 2nd-generation model?).