I love Google SMS -- just send a SMS to 466453 (GOOGL) regarding information you need and Google SMS send you the information back. One of the glaring missing information pieces from Google SMS has been airline flight information, but now that information is available, which is great!
Simply send a SMS with your airline and flight number and Google SMS will return flight status data to you via SMS. Another cool feature is sending the name of the airline -- Google SMS returns the reservation phone number.
See all the Google SMS features by following the link below.