Verizon moved into the prepaid space today with the introduction of two plans for 3G smartphones. Users can purchase either, 500 MB of data for $60, or 2GB of data for $70. Both plans include unlimited talk and texts, and each additional GB can be purchased for $20. T-Mobile offers a $30 per month unlimited 3G data plan, but throttles connections that go over 5GB per month. [Source: Verizon]