I get the impression that they are working harder on getting investor's money than on developing a startling new technology.

Hmmm... lets say you plug in your car for 5 minutes and it pulls 200 amps at 220 volts (you turn off everything else in your house or the main breaker will trip). That's 3.7 kWh or about $0.50 of electricity. Its also less than the energy content of 1/10 gallon of gasoline. I'd be more interested to see this car that can get the equivalent of 5,000 miles/gallon.