PC Mag: Barnes & Noble will be making some big Nook announcements this afternoon at a press conference in New York City, but the one question on everyone's mind will be: How is the nook going to compete against the Amazon Kindle? Barnes & Noble and Amazon keep its e-reader sales numbers pretty quiet, but it seems safe to say that the Kindle has an edge at this point. Amazon announced yesterday that Kindle sales have already passed last year's totals for Q4. What can Barnes & Noble do to catch up? I have five ideas, viz.