We've all heard about the Kindle. And most of us know about the Nook. And while Amazon is not selling a dedicated ebook reader of their own, they have just doubled down on digital distribution.
While Borders already sells electronic books (in ePub format), they've bought a fair chunk of ebook retailer Kobo. What's this mean? Well Kobo distributes not just to eBook readers, but to the iPhone, Blackberrys, Palm phones and Android handsets.
And though Amazon has not yet announced plans to distribute books through smartphones, their money speaks differently.