I am interesting in French-French dictionary in Kindle e-books reader. Sony does not have in addition to the English dictionary a French one built in the device. Should I wait for a new Kindle or a new Sony?

Was trying to dig up some info on the what was available out there in the way of electronic reading devices, other than the Sony or Amazon’s Kindle. Would like to find a unit that would allow me to utilize ebooks I already own along with new purchases. Not too thrilled by the fact that Kindle has done away with the external memory option and does not use standard wireless. Also most reviews I find on the Sony unit complain about screen glare. What are my other options if any?