The e-book/e-reader wars are really heating up. Amazon has plenty of good news to share around its Kindle device. Now Barnes & Noble is talking about a major push to increase Nook sales. Julie Bosman with the New York Times reports that in September, the company will start putting a great deal of emphasis on Nook in its brick and mortar stores, and that could go a long way in helping it compete with Amazon's increasingly successful Kindle. According to Bosman,