Epaper has been seen by some as the biggest threat to print since the internet was launched (although, to be honest, that hasn't turned out to be much of a threat at all). As discussed in today's PrintWeek (17 April 2008), the world's biggest publishers are moving to releasing titles in ebook format at the same time as the printed edition, while newspaper publishers are also exploring the possibilities of the medium.
News agency Reuters has posted a short video on epaper - follow the link here to watch it.
http://uk.reuters.com/news/video?rpc=401&videoId=80497&feedType=VideoRSS&feedName=Environment&rpc=401