Originally Posted by l_macd
The problem is it doesn't actually read epubs, as the Guardian article states, it stores and displays them as highly rendered bitmaps - it's essentially a bitmap viewer (and can only store a maximum of five).
Seems utterly pointless?
Actually they only support up to 5 books but in fact you can have more than a dozen depending on how big they are. It is dependent on memory size and as you say they are images, most likely not compressed simple gray bitmaps.