I saw a corded version of this in a pawn shoppe years ago. Can't remember the manufacturer. I still regret not grabbing it, but they wanted $100 for it.
Lowe's had the Switchdrivers in stores right before Christmas and I was tempted to grab one. Can't begin to tell you how many times I've switched bits to go from pilot holes to driving and back again. Thing sure looks handy.
I have other Worx products (lawn blower / vacs) and they work surprisingly well for being "as seen on TV" stuff.