Is is possible to get wifi anywhere on an ipod touch through a phone carrier?

I have an iPod touch 4g 32GB, and i was wondering if it is possible to get wifi anywhere through a phone carrier, like at%26amp;t. I mean paying so you can access the internet wherever and whenever, so i can use textfree to call and text.|||Apple hasn't done that yet. But hopefully they will soon|||Yes, you can, but you obviously have to be at least near enough to a phone tower to have any connection.