Kindle or Kindling?

According to an article on Wired.com, Amazon has sold 240,000 Kindles since the hand-held reading device went on sale last November, for a revenue of $100 million.  But what is the future of e-readers like Kindle?  Is the market saturated?  The heaviest readers are females 50 or over.  (Book writers, take note.) Quite possibly Amazon can get more customers by lowering the price significantly and making textbooks available as Kindle downloads.  They might also consider talking to Apple about redesigning it.  It's too clunky to get excited about.