Mobile phone at Class!

I think that proposition for the future it's so good, because the young people has use it more than the books. But also I think that proposition also it's bad because the people has to be brief the phrases, and also study for an exam at the mobile phone it's a little bit strange, isn't it?
And the young people while they was study at the class a lot of people have to be playing with the mobile phone.
Well but that thing have to be developed.