salut krapo ! et bienvenue.
like patricia said, if you come to our next apéro, you can see a lot of different liseuses and test them out for yourself, including the new models from sony. from what i have seen, the 600 will have no french dictionary installed (arg !) however you can choose between the US and UK english ones (you can switch back and forth whenever you like in the settings). hopefully, one day we'll be able to have as many dictionaries as we like, of all languages, and use them all in parallel.
i will be getting a 600 myself, principally for the dictionary (i like the notes too).
anyway, welcome to the forum, and hope to see you at the apéro ! please leave a message in the thread if you plan to come. bonne lecture !