Both Opie Reader and justreader work fine in landscaped 640x480. Click and hold on the icon, and turn off unset the \"use magnified...\" option, and they should be fine. Just a note on Justreader, set up all your options the way you like them before you switch to 640x480. Going into options while in 640x480 will show you a truncated options screen.
I like them both, but use Justreader more mainly because Opiereader doesnt support screen colours (cant change it from black on white, and I like white on black).
As for file explorer, I just use the Advanced File manager that was packaged with the old TKCRom Apps package. Proto probably has a better version available on his feed for the new c7x0 TKCrom v2.5.1. Personally, I use the konsole most often to do file manipulation, but that\'s just me.
Yz