I stumbled across a product specifically designed to charge from 2 USB ports:
http://www.ppctechs.com/HTC-Touch-Pr...e_1300-440.htm
I doubt it's any different than the portable hard drive cable I tried. I also read that some newer USB implementations can supply
more than 500 mA, so those with different/newer motherboards may still benefit from this charging technique. It would be great if others could load
nuePowerCPL and report their results.