Nk who seems to living and breathing GP2X has released a Visual Novel Interpreter for the GP2X called Narcissu, heres the info:
A visual novel for the gp2x.
Download narcissu from http://narcissu.insani.org/
Overwrite files from the zip with that of the game
Download Here --> http://gp2x-emulation.dcemu.co.uk/narcissu.shtml
Thanks to GP2X File Archive for the news.