Airtel Data Card / Airtel launched prepaid Data Card for Delhi

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Bharti Airtel taking launches new prepaid wireless Data card for Delhi & NCR. The data card will propose Internet connectivity for laptops and computing devices

Airtel launched prepaid Data Card for Delhi at monthly rental of Rs.348 where downloading of nearly 500 MB is without any charge per month.

The Airtel Wireless Data card offers wireless mobile internet and for laptop and other computer devices.

The New Airtel Wireless Data card is GPRS and EDGE compatible and work on all associates Airtel network while on national roaming and also when roaming internationally on GSM networks.

Airtel has recently been adjudged the top telecom service provider of 2009 by the Voice and Data magazine that is dedicated to telecoms and Internet services.

For 500 MB limit they are charging Rs. 348 ?

That too for EDGE / GPRS speeds.. not practical.

prepaid datacards are best..but what about the connectivity speed .coz tata phantom has already good review for data cards.

Airtel is good service provider for internet speed.But it is very bad to have a 500mb usage for Rs 348.
Is the above data given is correct or not?