Below is what customer said about Amazon Kindle:
1. SCREEN SIZE: Reading on the Kindle DX vs 6″ readers is like the difference between sleeping in a King sized bed vs a Twin Bed or riding in the backseat of a 2-door 1981 Honda Accord vs bucket seats in a Honda Odyssey. You feel like you have room to breath. The larger screen allows you to maximize the use of the real estate — taking advantage of larger fonts and more white space. This makes text much easier to read — even if you are just reading regular books.
2. KEYBOARD: I also love that they have compacted the keyboard so that it doesn’t dominate the overall appearance of the device. The smaller keyboard in no way compromises the ability to type. However, it improves the look by making the proportions more appealing and it means the device isn’t horrifically larger than the 6″ device.
3. PDF + BIG SCREEN = LOTS MORE USES: I can transfer my knitting patterns (complete with knitting graphs and diagrams) and cello music to my e-reader.
Using the Kindle for knitting — I can highlight my place in the knitting pattern making it easier to work more complicated stitch patterns.
I play cello and many of my music books are available in PDF format — again the Kindle is wonderful for carrying all my music with me at one time. Turning pages is faster and easier than with a physical book. The kindle sits well on the music stand (though you want to make sure the tray of the music stand is taller than the Kindle or the Kindle will be “top heavy” making the bottom slide forward and potentially falling off the stand.
4. SCREEN ROTATION — You can rotate the screen in any direction and the page quickly re-orients itself. You can keep rotating 360 degrees and the screen follows you. The buttons remain the same but the thumb stick also reorients so that if you push right relative to the current orientation, that always means “page forward” no matter what direction you are in.
If you are left handed and really bothered by having the buttons only on the right side, you can turn the device upside down and voila — now your buttons are on the left side.
5. BUTTON CONFIGURATION — I actually PREFER having the next page and back page on the same side and in a contiguous location (as opposed to opposite sides of the device like the Kindle 2). It makes one-handed reading easier without having to reach over to the other side of the device to flip back and forth.
6. SOLID feeling — I like the heavier feel — it is comparable to the heft of a hardbound book.
7. READING While charging — this sounds like a little thing but with the Sony, if you have the device plugged in for charging, you can’t read on the device at the same time.