Sprint AIRAVE 2.5+ Troubleshooting Manual page 2

Special note for Sprint As You Go customers
With Sprint As You Go you can free yourself from long-term contracts and
enjoy more wireless flexibility.
Some limitations apply, depending on your service plan and device. Data roaming may
not be enabled and certain applications that are preinstalled on your device may not
be available or operational. Also, to purchase other subscription-based third-party
content from application stores (such as Google Play™), you will need to provide them
with credit card information.
For more information, visit sprint.com/asyougo.