[sideburnt]

In my experience most formats will transfer to HTML with a bit of tweaking, this format is the perfect state to keep a library, as a custom CSS style sheet could be applied for each device as you upgrade.

I very much doubt that HTML (or HTM, in its correct term) will ever become depreciated.

However despite that I am happy with my library to be in LRF or EPUB.

(Hint: If you rename the .epub to .zip and open it, you will see a HTML file with a custom.css file to render it, which pretty much solidifies my statement above)

EDIT: I am very aware of the xda-developers site, having contributed down the years to various projects, I would not compare the two platforms, a HTC device ROM is significantly different to Linux on an eReader. A lot of crucial code is missing on an eReader that would make a device 'universal' code that would need to be custom written or ported over, with a much smaller development community. A HTC ROM merely gets massaged to get the results that people require since its an OS that is designed to accept 3rd party software and data input.

This project is by far the closest we'll see in a collective development project, its one to be proud of, and I for one am extremely impressed at the commitment.

the best peice of customisation that the PRS device can get is a boxing clever user that manages a correctly tagged library in a clean format.