Has anyone ever just plugged the blu battery charger or blu pcc charger cable into the usb power plug of an iphone/ipod or other similar usb plug? I don't have many usb ports on my computer, and it'd be a lot more convenient to just stick the charger in the usb plug and then stick that in the wall. I asked the blu technical support and they told me very unhelpfully 'we recommend using only a computer'. IT makes sense to me if it just works, but just wanted to make sure