i've thought more on the Protege though, to add to the discussion. i know i'm one of the first to say that using 5v is night and day compared to standard 3.7v ecig batteries, but some days i do find myself just wanting to chain vape. i also can't stand to not buy new and cool things, so i'm fighting myself DAILY not to buy a manual 510 or even some of the new manual 901 batteries, so this thing needs to come out quick. i don't need a gaggle of devices that i'll totally stop using once i get something like this!
If you already have the Prodigy, why not buy the other switch and batteries which will allow you to vape for 2-3 days on a single charge at 3.7v.? Just a thought so you can still sue the device that you already have.