A preponed flight...

There is a first for everything. While I was in India last week, I was totally taken aback when a relative of mine who was supposed to fly to Mumbai by Air Deccan, received a SMS from Air Deccan that the flight had been preponed by 15 mins. Thats the first I have ever heard about any public transport being preponed. I was also told that this is very common with this specific airlines. A very novel way to be a different airline. Not sure how many people are inconvenienced because of this novel idea. I wonder what happens to people who do not have a mobile phone or who do not have access to a phone on the day of travel.