My idea for txtWeb - Creating a Vendor - Consumer network via SMS

Think of a fine morning when you get up and realize that you need some fruits for your house. You pick up your mobile phone and send the keyword (Say @vendor) to a particular number. Immediately you get an SMS back showing you the list of possible vendors in your locality say
1. Fruit vendors 
2. Vegetable vendors
3.General Stores
4. Carpenters
5. Painters and polishers
 6. Home maintenance agencies etc
 (The system knows your location since you have submitted your location details when you registered for the network).

You send the serial number corresponding to ‘fruit vendors’ as a reply to the same number and viola – within a few minutes you have a fruit vendor with his fruit cart at your door step. After talking to the fruit vendor while making the purchases, you realize that he got your address as an SMS saying that fruits are required at this address. He also tells you that since he has registered on this network, he is regularly getting SMSes and his business has improved significantly.

Later sometime in the afternoon sitting in your office, you remember that you had to contact a carpenter for getting a new wardrobe. Tech savvy as you are, you send the same SMS and now get list of various carpenters in your locality. You choose the carpenter and send it back as an SMS, and within a few minutes you get a call from the carpenter and you fix an appointment for the evening – the job is done now!

Having said the above, I have two questions to ask:
1) Is a network like this possible through internet in India?
2) Does the above stated idea look very far sighted?

I think even in the best of scenarios, a vendor – consumer network like this cannot be achieved through internet in India. But yes, when it comes to SMS, this looks very possible. Each of these vendors carries a mobile phone. In fact, I saw a road sweeper yesterday, talking on a simple mobile phone. So when it comes to a vendor – consumer network, it is the SMS that connects us.

Secondly, I think the above stated idea does not look very farfetched, especially when there are engines like txtWeb which allow you to build SMS based application. If you visit the txtWeb appstore even today, you can see apps like @ebay (get product info on ebay on your SMS), @rest (get info of restaurants), @ask (get answers to your query, directions etc), @trains (get info on trains) which show that the txtWeb developers are on their way of developing apps to help people in their daily needs and soon somebody would develop an app for a network like this.