Well I will put my thoughts here since this topic already exists
So coming from my PRS-505 here is what I like about the Sony PRS-505 over the Kindle 3
- I like the ePub support (this has been beaten to death by everyone though)
- I like the default font type on the Sony for my books it looks more like a book type face then what the kindle uses.
- I like the solid metal build of my PRS-505 it feels a lot more durable but I still use a cover
- The option of expandable memory (not that I ever needed it)
What I like about the Kindle 3 over the PRS-505
- I like how thin the kindle itself is
- I like the Kindle 3 cover more then what Sony offered (especially that awful wedge light cover)
- I like having the dictionary and annotation options (not that I have actually had to use them yet)
- I like the Wifi+3G which allows me to get my books anywhere (a major plus as I always seem to finish a book whenever I am NOT home) and not have to use an awful store interface like the Sony uses though the ePub support allowed me to bypass the Sony store I still used the software to get books onto my device.
- I like how much faster the page turns are it is a huge noticeable difference
- I like the menu system for the Kindle more far more responsive then my Sony
- I like the page turn buttons much easier for me to press and they are located in places that is comfortable to reach no matter how I am currently holding my Kindle
All in all my overview:
The Kindle 3 is mostly superior to the PRS-505 in many ways. Though I like the build quality and the type face and the ePub support more on my Sony, the benefits of the Wifi+3G and the lighter and better designed cases and speed for my Kindle 3 win out. I waffled quite a bit on this before I bought a Kindle and almost got a Nook but I am glad I got the Kindle in the end.