There's abundantly apparent advantages and disadvantages to both paper and electronic media. Nobody can tell where's it's all going to go.
I don't see paper books being obsolete in my lifetime.
Nor do I see the eBook bubble bursting and all the readers etc becoming useless tech.
What could happen is... Kindle gets dropped, Sony stop producing them, Apple never get around to it, very few books are released in electronic editions, the market is left to niche producers like Bookeen etc.
Or both mediums could coexist, overall more books are read as people now have a choice over what medium they use. The paper book market is not negatively impacted, the electronic book market matures and develops, Kindle is not alone as a wireless device able to grab content any time.
Or.. we could see mass market paperbacks dying a death. Certain genres all but vanish. Books disappear from supermarkets, "book supermarkets" like Waterstones, Booksamillion etc close. Almost every mobile phone (cellphone for Americans) comes as standard with a roll-out electronic ink attachment. Convergence devices really kick off. It doesn't matter if you want to pay for an electronic ink device or not, or if you want an MP3 player in your phone, or if you want a phone on your MP3 player. Fact is you'll get them all in one because there's almost no cost to add the functionality to your device. Every semester students get the book list delivered to their device, they press the "accept" button and they have all their coursebooks in their device. Your morning paper arrives not through the letterbox with a slam, it arrives with a ping on your device.
Nobody knows where it's all going to go. Nobody can know. So any articles predicting anything are just basing future developments on their own opinion of things. But still, they're somewhat interesting to read.