Any chance you could implement what is arguably a very EU centric (and not so much air travel) feature?
When I shuttle back and forth between the UK and the continent and certain northern EU cities, I frequently like to look at both the trains and planes, sometimes using a combination of the two. The tool currently recognizes "QQS" and "ZYR" and many other (possibly all) IATA codes for train stations, but it doesn't have them saved under either the "LON" all airports or "BRU" all airports, or for that matter under their real names (St Pancras, Brussels MIDI, etc).
I always forget the IATA codes for train stations, the airports have some rhyme or reason to them, but XPG and ZYR, try as I may I cannot remember them. Any chance you could (1) build the train stations into the major cities "all airports" codes and/or (2) include the common IATA train station codes so we dont have to look them up? (BTW, I use
http://www.reference.com/browse/IATA+codes to look them up)