Originally Posted by sun surfer
If you plan to be using the dictionary a lot, I wouldn't recommend the Kindle. You have to manually press buttons and scroll with buttons to the word each time to look it up, which I haven't tried but seems like it would be more cumbersome for someone who uses it often. On a Sony, you can use your finger or the included stylus and tap on the word and the definition will pop up.
In the Kindle you don't have to press any button, just place the cursor before the word you want to look up and the definition intermediately appears at the bottom of the screen. It is an easy and fast process, although the Sony readers, because they have touch screen, use a relatively faster way. The only problem with the Sony is that you can't add new dictionaries; with the Kindle you can and there is a lot of them (free and not) to choose from. For example, the Sony doesn't have any France- France dictionary and you can't add one; however, with the Kindle you can download for free the dictionnaire_academie_francaise_1932-35_8e_edit..pr
or buy another one in the Kindle Store and use them as a primary dictionary.