We don't pretend to make heads or tails of most FCC filings, with all the electronic testing hullabaloo and acronym mumbo jumbo, and this is no exception. We've already seen the HTC "Cedar" make its way through the feds under the CEDA200 codename. But Engadget has spied a CEDA100 at our favorite federal agency and notes that it's not at all uncommon for HTC to do this and that it could signal versions coming to Sprint and Verizon.