What about the new E-Jets? I have problems figuring out what they are apart from the oversized winglets (and, for now, the fact the only ones I see are BE).

Also, as runway signage is mentioned, anyone any idea (I'm looking at WHBM here as it's at LCY) what "CAUTION YOUR BLAST" means? I assume it's for jets at small airports, but I've often wondered its exact meaning.