ACTIVATION
If you're having trouble activating, here's what worked for me on an iPad 2:
1. With wi-fi on, open http://tmobile.com/connectme in your browser. (This redirected to https://mim.t-mobile.com)
2. Turn off wi-fi.
3. Refresh page over cellular data. A new page with a Connect Me button appears (or something similar). Click that.
4. Following page lists data plan options, including "Plain and Simple - Free Data for Life" -- the 200MB free monthly data plan.
5. Give an email address and password to create your account. No credit card needed.
If you're having trouble activating, here's what worked for me on an iPad 2:
1. With wi-fi on, open http://tmobile.com/connectme in your browser. (This redirected to https://mim.t-mobile.com)
2. Turn off wi-fi.
3. Refresh page over cellular data. A new page with a Connect Me button appears (or something similar). Click that.
4. Following page lists data plan options, including "Plain and Simple - Free Data for Life" -- the 200MB free monthly data plan.
5. Give an email address and password to create your account. No credit card needed.