This NKJV for the Kindle was recently updated in October 2009 to fix some of the formatting issues present in the previous version as well as enabling chapter navigation. One word of caution regarding chapter navigation is that it works very well for me with the Old Testament but not so well with the New Testament (would take too long to explain). At any rate, I use this Kindle version as my daily reader and use 4 book marks to pick up where I last left off: 1. In the Old Testament 2. Book of Psalms. 3. Book of Proverbs. 4. New Testament.
When I need to study something in depth, I either go to [...] or pull out one of my leather bound Bibles.
Don't at all be afraid to get this bible if you are going to use it as your daily reader. Again, not so good for in depth bible study unless you get really, really good at using the kindle's search feature.
If you need a kindle Bible with better chapter navigation...get this KJV: Holy Bible - The Illustrated King James Bible (King James Version, KJV): The Old & New Testaments, Deuterocanonical literature, Glossary and Suggested Reading. Illustrated by Gustave Dore