This is fantastic news, I run Ubuntu on a daily basis and actually have an Eee 901, plenty of txt books, and no eReader
As long as I can figure out how to tweak the colours, and possibly format the text to be single column (not for me, for my girlfriend who seems to prefer it that way), you may have just saved me a whole lot of trouble
I'll report in when I've given it a go, and if I have any thoughts or troubles

Thanks!