I have no doubt that the battery level displayed is genuine. What I do doubt is how much juice is actually in the battery they have connected to the phone; supe

I have no doubt that the battery level displayed is genuine. What I do doubt is how much juice is actually in the battery they have connected to the phone; supercapacitors aren't new. They also have severe issues with actually providing enough sustained power to be useful in a cell phone context. Remember that story about a year ago about the high school girl who was going to charge your cell phone in 20 seconds? Same promise, same problem - supercapacitors charge really fast, discharge really fast, and just can't compete with a l-ion battery. As soon as someone demos one of these batteries that can actually provide 10 watt-hours on a 30-second charge, call me. Until then, yawn.