Hi, I have an iPhone 5 and a sim card from T mobile USA. I have the 30$ unlimited web plan. When I was tethering to my laptop I got a message from t mobile informing me that a tethering option can be purchased online.. How could they know? I installed MyWi from Cydia and used the free trial.. Is there any other way to give internet to my laptop ( via usb/bt AND wifi)? I would like to tether: -wifi gogo connection from iphone(cheaper) to my laptop via bt or usb -my mobile data from T mobile to my laptop via bt/usb/wifi Are they that smart? I thought it would be possible via Cydia somehow.