India is a land mobile phones - 116 million subscribers to be precise at the last count. Community building integrating the mobile and the net is a sweet spot for markets like India. Yahoo has launched Mixd. Take a look at what Yahoo has to say:
Mixd is about going out. Coordinate last-minute meetups, share pictures and videos from your phone, and remember last night on a website we create for you, automatically.
How? Mixd is group texting and photo & video sharing. No downloads or installs required. Just text 445566 and you're off and running.