Advancement of Cell Phones

What would life be like without cell phones? Read this article describing cell phones from 40 years ago until today.

Comment on the following:
What are the benifits ofcell phones?
What are the negatives?
How would life be different without cell phones?

What about the future of cell phones? How will cellphones change in the future? How might that change your life? Watch this video of google glass which will be for sale in the near future. How could this change things for better and worse?