RobertB,
An accessory to add to your proposed list:
A hard shelled case for packing the EZ Reader(s) in for travel.
I like the Pelican cases, but they don't have one the right size. I went trolling on the net and found one company that customizes, with customized logos. It would be neat to offer these for those of use who wish to pack for a journey and not risk the damage.
http://www.pfccases.com/products_stockcases.php
They offer colors too.
AJ