You asked, so here we go.  For thrill-seekers and those who are just plain lazy, check out Spnkix.  Not jet speed, but you can go 2-3 miles on a single charge and up to 10mph.  Unfortunately, the recommended age for these is 16+ (liability issues, go figure), but something tells me a toddler would get a kick out of using the remote control to wheel daddy around the driveway.  Each comes with a wireless remote that straps onto your hand, allowing for throttle adjustment of the wheels with a simple nudge.  At $699 a pair this is not your average holiday gift.