Although many of us choose to use Twitter clients like Seesmic Desktop, Tweetdeck, or Twitteriffic to access Twitter using computers or mobile devices, much of the world doesn't have convenient or cheap access to these tools. That's where SMS comes in. Remember, Twitter was originally designed with SMS specifically in mind; the 140-character message limit was designed to work with SMS's 160-character limit - and it does so easily and conveniently for tens of thousands of users in many countries.

Up until now, unfortunately, India wasn't one of those countries....