What kind of phone do we need to invent?

Question

anonymous · Answer

the kind that's free

anonymous · Answer

What do you mean by that? You mean to come up with a way to use cheap materials to make a phone so that I can earn lots of money? How about the phone that people can contact anyone in the world? Will that be marketable?

anonymous · Answer

I think technologically, we've reached the peak of cell phones.  But they could become cheaper,

anonymous · Answer

So what gadget should we invent right now that everyone needs? Sorry, I know that this is not related to math, but I really need this idea.

agent0smith · Answer

erm, if we knew what gadget we should invent right now that EVERYONE needs, we probably would not tell you :P

anonymous · Answer

right now, with presence technology, I can't think of any;

anonymous · Answer

Okay.

agent0smith · Answer

If you were able to think of something which everyone really needed, then you could make a lot of money off that idea.

anonymous · Answer

I know. But who should I ask this question to?