Interesting, very interesting. We are all familiar with the branding nightmare that is Nokia’s higher-end line of phones. Eseries for business, Nseries for fun — but even fanboy blogs seem to have a tough time remembering how to spell the brands. E-series, N Series, E-Series, n series and so on. These lines have been around for long enough however, that Nokia is basically stuck with them at this point. As a matter of fact, it may even be expanding. By way of the Finnish blog Puhelinvertailu, it looks like Nokia filed a trademark application for “Cseries” back in April of this year. The new series, assuming Nokia does in fact get the trademark and make use of this new branding, could be for a number of things. We could see some of Nokia’s numbered phones, maybe the Symbian-powered models, move over to Cseries. Or perhaps we’ll see an entirely new line of Maemo devices bearing the Cseries name; we never did understand why Nokia slapped an “N” on its last two tablets. Speculation aside for the time being, the “E” in “Eseries” stands for Enterprise and the “N” in “Nseries” stand for, umm, eNtertainment? Not enterprise? Nokia? Whatever — the question here is what will the “C” in “Cseries” stand for if Nokia does in fact bring it to market?