Here is a screencap of my plan page. I assume the 2.5GB of that is tethering as the plan doesn't mention it, maybe in fine print somewhere, and they include the otherwise 500MB free giving 4.5 GB total. Trying to determine if I should go for totally unlimited data as I do have a rooted phone, and tethering works before OK, (gotta try it again), and if so, go totally unlimited? I didn't buy a new phone, I'm keeping my HTC Sensation 4G for now.
Here is the fine print on the Plan page:
"Limited-time offers; subject to change. Taxes and fees additional. Domestic only. Compatible device required; not all features or plans available on all devices. Unlimited talk & text features for direct U.S. communications between two people. General Terms: At participating locations. Domestic only. Credit approval, deposit and $10 SIM starter kit may be required. If you switch plans you may be bound by existing or extended term (including early termination provisions) and/or charged an up to $200 fee. Regulatory Programs Fee of $1.61 per line/month applies. Taxes approx. 6–28% of bill. Full speeds available up to monthly allotment; then, slowed to up to 2G speeds for rest of billing cycle. Roaming and on-network data allotments differ; 500 MB full-speed plan includes 10 MB roaming; 2.5 GB, 4.5 GB and Unlimited 4G full-speed plans include 50 MB roaming; 6.5 GB and 8.5 GB full-speed plans include 100 MB roaming; and 10.5 GB and 12.5 GB full-speed plans include 200 MB roaming. Unlimited text includes unlimited nationwide text, and picture and video messaging. Family Plans: Limit five lines. All lines of service must be activated in the same T-Mobile market with same billing address and area code. Smartphone Mobile HotSpot: Qualifying plan required. Plan data allotment applies. Unlimited 4G data plan includes 500MB of tethering. No domestic roaming. Use of connected devices subject to T-Mobile Terms and Conditions. Apps and 3rd Party Content: Use of some content or features may incur separate, additional charges and/or require a qualifying plan or access to Wi-Fi connection. Coverage not available everywhere. Network Management: Data traffic of plans with limited high-speed data allotments greater than 2GB will be prioritized over other currently offered plans during periods of congestion. Service may be slowed, suspended, terminated, or restricted for misuse, abnormal use, interference with our network or ability to provide quality service to other users, or significant roaming."