OK, half of my family is on Twitter: my mom (though she rarely check on that), my sister and me. My sister mainly uses tweet.sg to update her tweets. She does not have a moblie data plan, and she cannot get one due to some restrictions. So she updates through SMS. Not very cost effective, I must say, especially when the user often exceeds her monthly free SMS limit. I am seldom on Twitter, because I prefer a more social-inclined platform like Plurk.I am still on Twitter though. I really wonder what will happen if my mother is active on Twitter. hur hur..