@ Cherry Bomb, though I'm a book lover, I get to disagree with you. The new Kindle can last for one month on a single charge, while many mobile phone (like iPhone) can last no more than one day. Is it really likely to get the Kindle out of battery?
And even though I love actual books, I've to accept the fact that ebook will become more and more popular because it is so much convenient, eco-friendly, and we can get dictionary, annotations, highlights, read aloud to us, all with a device without bringing another dictionary or pen or audio book. We can put thousands of favorite books in one, instead of bringing tiles of heavy books. It's a trend, we need to accept and live with it, otherwise even ourselves with get sunk in the wave and get lost in the society.
I miss the past time when I write letter with paper, but now I accept and enjoy the convenience brought to me by email. I miss the days I listen to music from cassette, but now I accept to listen music in MP3. Does cassette company closed down? Yes if they do not catch up the trend to do other things in demand. So newspapers, magazines, even though people read things from internet, many news still come from newspapers' website and if they are smart enough and do well, they can earn enough money from web advertisement. That's the future trend, don't pull people stay with you, everyone get to move :D
Here is another original book die-hard lover, you can see how she says about the Kindle:
http://www.amazon.com/gp/redirect.html?ie=UTF8&location=http%3A%2F%2Fwww.amazon.com%2Freview%2FR9J54TZ1541OR%3Fie%3DUTF8%26ref%255F%3Dcm%255Fcr%255Frdp%255Fperm&tag=more_info-20&linkCode=ur2&camp=1789&creative=390957
Ok, enough for these. So I love my Kindle very much. If you're thinking about getting the Kindle, I'll say get it and you won't regret. You can use it for textbooks without problem. Right now I've read over 10 books with the Kindle, and I really like the idea that I can bring and store all the books with the handy device. Besides, it uses the e-ink technology, it is really clear like reading books; and even I read with the device for long hours, I don't feel tired. The internet browsing comes handy as well when I want to look for information on some specific area. My only complaint is the white case, the Kindle is only sold in white at the time when I got it, but now the new Kindle has graphite case which looks much better ;)
And there are some websites, where you can find more than a million of free books for the Kindle, so that's why you no longer need to get to library, you can actually own these books:
http://www.amazon.com/gp/b/?node=2245146011&tag=more_info-20
If you need to read PDF with charts and graphics, you may want to go for the larger Kindle DX (both the new Kindle and the new Kindle DX are now at a cheaper price and with better contrast). Read this review and you should be able to decide which one to get:
http://www.amazon.com/gp/redirect.html?ie=UTF8&location=http%3A%2F%2Fwww.amazon.com%2Freview%2FR23V08M2LNB81I%3Fie%3DUTF8%26ASIN%3DB0015TCML0%26nodeID%3D%26ref%255F%3Dcm%255Fcr%255Fpr%255Fcmt&tag=more_info-20&linkCode=ur2&camp=1789&creative=390957
Hope this helps.