WSJ: Amazon Is Already Testing Smartphones With 4-5 Inch Displays - Business Insider

The only way this gets compelling for me is if Amazon introduces a Prime++ subscription service at a reasonable price that includes an Amazon smartphone (with upgrades every 18 - 24 months) and steeply discounted wireless service.  Considering the success of Amazon Prime and the precedent of Kindle 3G support, I believe Amazon may be poised to deeply disrupt the smartphone business.

"It looks like Amazon may be farther along in the process of putting out a smartphone than we thought.
The Wall Street Journal reports that Amazon and its Asian suppliers are already testing smartphones with displays of four to five inches."

WSJ: Amazon Is Already Testing Smartphones With 4-5 Inch Displays - Business Insider