My mother isn't happy with the lack of a wall charger. I posted at Teleread about this and someone suggested a 'USB to wall' charger. My contact at Kobo confirmed that this device should work fine with the Kobo and that Blackberry (among others) has them. He said I could get one at The Source for about $20. Has anyone tried such a thing? I want to be sure it will work before I sic it on Mom the tech-phobe