HandEra 330 and Plucker?

[Byron Collins]

Hi All,
Do anyone know the reason why the HandEra 330 PDA can't open
a ZLib-compressed plucker document / ebook?

Is it because of it 240 X 320 resolution screen?

In reference to this review:

http://www.memoware.com/handera330/

Regards,
Byron Collins