Is there any data/press releases/speculation/etc on the Kindle 3? What will be different about it?
Also, this is from the Kindle 2 user guide, about the dictionary:
Your Kindle includes The New Oxford American Dictionary. You can easily look up a particular word without leaving the content. Simply use the 5-way controller to navigate the cursor in front of the word you want defined. A definition of the word appears at the bottom of the screen. To view the full definition, press the Return key on the keyboard. To return to the text you were reading, press the Back button.
Looks pretty handy!