I have been charging devices on my pc: mp3 player, cellphone, camera, Nintendo DS, and pocket PC. Recently I bought a wall charger that could charge USB devices. It has a USB port in it so all I have to do is plug the cable that came with my device to this wall charger thing and plug it into a wall outlet...I was wondering if I could use a 4-port USB hub on this wall adapter so I could charge 4 devices simultaneously plus the fact that I do not have to turn my pc on just for charging. I'm not really that worried of breaking the wall charger as it is cheap... What I am worried about is breaking my gadgets... Has anyone tried this yet?