"Isn't it much cheaper to use a phone with wifi?"1.5 starson by MV
Pros: Is what it is.
Cons: And that is all.
Summary: I really don't get it. How could this ever be considered a useful alternative to simply paying the lesser extra charge required to make one's phone a wifi hotspot? Even if one doesn't own such a phone, buying one would still cost less over the long run, and be way more convenient.