I think what you ready need is a simple editor that can also serve as a viewer. I found two candidates in the Maemo (Nokia 770/N800) application catalog:
pygtkeditor sounded perfect, but is only for Maemo,
leafpad is a very lightweight editor and may be a good choice for the iLiad. I tried it on my Pepper Pad 3, and it is has a very simple interface. So far as I can tell, it does not support key-bindings so I don't know if page-down (flipbar) will work or not. It does support line numbers and line wrapping, but not syntax highlighting.
There are heavier-weight editors, e.g. gedit, which support tabs and syntax highlighting. However, they may be harder to get working on the iLiad.