That is from Virgin Mobile, and is only available from Walmart.
If you are in the market looking for a broadband card, and you are not a frequent user, no need to lock yourself up in an expensive postpaid plan.
Go to Walmart and get a Virgin Mobile broadband plan for only $20 a month.
That is perfect for iPad or Tablet users who typically consume about 1Gb data a month. Any unlimited plan is a waste of money.