Quote: "you can't receive or place voice calls & your minutes are charged for all carriers as far I know".
Not so with Sprint. At least two years ago I was able to use the USB cable cord together with Sprints PCS software and be able to connect with my laptop 24/7 at no additional charge. That said, during Hurricane Charlie, I was unable to have access so I called Sprint's tech support. It seems that Sprint doesn't want their clients to use the cell phone as a modem other than the stupid use of the cellphone's screen. They have refused to give support stating that they do not want us to use the laptop connection unless we buy their $79. (or so) monthly program.
No one has stated they use Sprint. Is there anyone out there that does? I haven't tried mine of late and this thread has kicked up my curiousity to try it again. More later.
I have reported on this and another program called Slingshot (ggogle it) which is an inexpensive way to connect to the internet.