Originally Posted by jcmtyler
Is there a difference between that and T-Mobile's regular $9.99 Hotspot service, which you mentioned below? In other words, if I pay an extra $9.99 a month, I should be able to connect via wifi at Starbucks using my laptop, or make unlimited UMA calls using my 8900, is that correct?
Yes, there is a difference.
You can make UMA calls at a T-Mobile HotSpot (like most Starbucks, Borders, etc.) as long as you have any T-Mobile voice plan. Try it. The HotSpot feature is unrelated to your ability to make, or be billed for, UMA calls.
If you sign up for the HotSpot service, then yes, you can use your laptop for WiFi Internet.