One piece of paper for all info

Thin stainless steel foil becomes "future paper". "Ad signs that change as you walk by", sounds like more of Phillip K. Dicks Minority Report futurescape. Credit cards that tell you your current balance?This article from UK The Mirror has more for those interested in uploading todays paper via net on a lightweight piece of paper, and then using that same paper to read a book at lunch or while on commute. You would think that enviros' would be all over this eliminating of deadtree communications.