AT&T wants to sell you iPad data by the day even if you use Verizon or T-Mobile
AT&T has launched Unlimited Day Pass, a new service that gives eligible iPad users 24 hours of unlimited cellular data for just $3. The most interesting part is that you do not even need to be an AT&T customer to use it. Verizon and T-Mobile users can activate the service too, making this a surprisingly flexible option for occasional tablet connectivity.