Anyone wants to guess what e-readers that he is talking about?
My guess is, (without thinking to much about it)
astak 2 models
sony 3 models (the 300, 600 and one more)
irex 1 model
txtr 1 model
plastic logics 2 models (perhaps

)
samsung 1 model (why not!)
10 models
I am prob wrong but it is more for starting the discussion