Yeah, thats because Kindle DX has a 9.7 inch screen whereas, Sony PRS 650 has a 6 inch. Kindle 3 has a 6" screen and is $139.
Now, if you want to haev a reader JUST to read books in pdf format, forget about the ereader. No reader in the workd can read pdfs ideally. And, this is a fact that one realizes only after buying the device (like I did). As for the exe books, am sorry, I have never heard of a book that comes with that extension. I dont think, OS's apart from Windows can even execute an exe file.
To know more about ereaders and ebooks and their formats, go to
www.the-ebook-reader.com and go to their "how to" section to read up more.
Also, research ohese keywords: text reflow, ereader reviews.
I can list the ereaders for you that are excellent for what they are made. You do the research on them:
1) Amazon Kindle 3 Wifi/3g - $139/$189
2) Sony PRS 350/650/950 - $150/$200/$300?
3) B&N Nook
4) B&N Nook color
Tablets:
1) iPad
2) Samsung Galaxy - Rs. 36000 - 38000 for 16GB version
This is all I can remember off the top of my head.
My suggestion is to research on these for some time before coming back and asking the questions, as most of your questions will be answered by the reading that you will do. Thats what I did for a few weeks before buying my Kindle 3. I had ZERO knowledge when I started. I got an idea to get an ebook reader because of Sei's show off thread of his own Nook. Happy reading mate.
