The users dial the *325# number, then enter their Facebook username and password and they are in. They can then send number based commands to access various features of Facebook, chat with friends who are online, add new people to their friends list, and more.
I played with the service for some time and it was a nice experience overall. If there were a Unix-like shell interface for Facebook, it would be much similar. Fonetwish says that this service is currently available for Airtel, Aircel, Idea and Tata Docomo users in India.
It may be too much work to read your Facebook news feed stories one by one but this is a good option to quickly update your Facebook status or for chatting with friends who are online. The price is reasonable too – you just have pay a subscription fee of 1.00 per day for unlimited usage.
Note: This Service is in India only.
