[rpm1983]

Looks like HuffPo may have jumped the gun, as the rest of the reviews just now came online.
http://www.theverge.com/2012/9/30/34...erwhite-review
http://gigaom.com/2012/09/30/kindle-...iew-and-video/
http://www.slashgear.com/amazon-kind...view-30249722/
http://techland.time.com/2012/09/30/...rwhite-review/
http://gizmodo.com/5947435/kindle-pa...eader-you-want
http://techcrunch.com/2012/09/30/pap...kindle-review/
http://www.engadget.com/2012/09/30/a...rwhite-review/
http://www.laptopmag.com/review/erea...aperwhite.aspx
http://www.techhive.com/article/2010...ly-shines.html
http://www.usatoday.com/story/tech/c...eview/1604417/
http://blog.chron.com/techblog/2012/...le-paperwhite/
http://news.yahoo.com/amazon-kindle-...210111298.html
http://www.wired.com/reviews/2012/09...le-paperwhite/
http://www.nbcnews.com/technology/ga...eaders-6191170
http://mashable.com/2012/09/30/amazo...an-buy-review/
http://www.suntimes.com/technology/i...er-better.html

The 2004 Oy Modilis patent for "Light panel with improved diffraction" has diagrams that look a lot like what Amazon has shown for Paperwhite. They also had a patent for an "Ultrathin lighting element". Amazon bought the company in 2010.
http://www.google.com/search?tbo=p&t...odilis+Ltd.%22

Google Patent Search shows 391 patents with Amazon.com as the asignee, I'm going to go read Paperwhite reviews, so don't feel like looking through them right now...
http://www.google.com/search?tbo=p&t...n.com,+Inc.%22