- $14.99 per month for 250 MB
- $29.99 per month for unlimited data
- Unlimited access – no added cost – to AT&T's 20,000+ Wi-Fi Hot Spots
There's a "usage meter" in the general settings of 3G iPads (Settings > Cellular Data) that lets you monitor your data usage. Additionally, when you purchase the $14.95 plan, you'll get three warnings that you're about to exhaust your plan: One at 20 percent, one at 10 percent and finally at zero. If you do exceed your plan, it simply expires until you renew (so you're not racking up "penalty minutes" or anything like that). Note that AT&T defines a month as a 30-day period.
While you await your 3G iPad, check out our overview of managing your data plan.
Note: The source link below is a PDF.