Both the Stream and the Plextalk Pocket use the Vocalizer (Samantha
and Tom) voices. BookSense uses RealSpeak Kate and Paul and costs (for
the standard version) about the same as the Stream; slightly cheaper
until the end of September. The Icon and Braille Plus use Eloquence.
BookSense is $314 right now for the standard version; Stream is $349,
and Plextalk Pocket is $359.