Amazon has the edge in the e-book market right now with the Kindle but will invariably lose ground to Apple over time, Citi analyst Mark Mahaney said in a research note on Friday. The Kindle store has both more selection and lower overall price than the iBookstore for the iPad, but Mahaney didn't think this would last as Apple refines its store and increases iPad sales. He didn't predict when this would happen but saw it as almost inevitable.
