I have a flight tomorrow morning and I'm getting different information from different sources on the equipment. My reservations says it's an E170 and shows the correct seat map. When I checked in, it said the aircraft was an E145, with the E170 seat map. United cargo says it's a 737 (???). Strange, because it's operated by United Express and because of the whole no legacy UA 737 thing. Have other people been noticing this, too? For now, I'm going on the assumption that it is, in fact, the E170 (and I scored 3F, no upgrade as of yet). Just seems really odd.