Thinking about getting the basic wifi Kindle. Have some questions and would appreciate feedback from GTers that use one. 1. I have a lot of books in pdf format already. Does the kindle read them well, or is it better off to convert them with calibre first?? 2. The specs tout wifi access to wikipedia. Does that work well? Can you see images on wikipedia or just plain text? Does the browsing in wikipedia work as well as a browser on a PC? Do all hyperlinks and etc function? 3. You can access wikipedia, but not any other websites?? 4. Any rumors of a redesign soon? (I like the current design, but if a revision is just around the corner I'll wait & see) 5. Are you satisfied with the product? Thanks.