Time to raise the curtains..
All you have to do is:
1) Dial *325# or *fbk# from your cellphone ( from a simple Nokia 3100 to smartphones like a Blackberry and an IPhone as the company describes it)and wait for confirmation message.
2) Provide your login details and you are on.
Cost??? Updating a status is totally free. For posting on walls,see notifications or add friends, you need to have a premium plan. And before you are concerned about the charges of this premium plan, let me clarify thats its as cheap as Re 1/day.
Its currently operating in India and Indonesia and service providers like Airtel, Aircel,Tata Docomo ,Idea,XLcom,Telkomsel already support it.