Anyone unlucky enough to commute will know that dead tree media still rule the roost, as least on the nation's public transport. But ebook readers, including the odd iPad, are starting to creep in, along with mobiles, games consoles and even DVD players on long journeys.There's a deep-seated resistance to digital versions of a centuries old traditional of printed books, which have rightly enchanted, educated and enlightened readers since movable type. So what will it take for ebooks to become mainstream? Photo by cloudsoup on Flickr. Some rights reservedThere are dozens of ebook readers on the market, all largely comparable in size and offering from the lesser know Astak, Kobo and Alex readers to the Kindle, Nook and Apple iPad. ...