What happens if your phone goes dead?

I came across this gadget and I find it too irresistible to simply pass without telling anyone. So here goes. :P The Sidewinder is the world's smallest, lightest, and most powerful portable cell/mobile phone charger available! Weighing only 2 ½ ounces it puts out power greater than a plug-in charger. It fits easily into a briefcase, suit pocket, purse, vehicle glove box, backpack or household emergency kit. Two (2) minutes of charging equals over 6 minutes of talk time, even more standby time. Keep charging and talk indefinitely. Ideal for any situation away from a traditional power source where you need to complete a call. Use for camping, hiking, boating, hunting or when away from a conventional charging outlet. So basically, this gadget converts the kinetic energy which you supply into electrical energy. Just insert your phone into the Sidewinder and you can just wind the lever by the side to charge your phone battery. Imagine you are taking an important call and the battery is going flat - now this will come in very handy. There is a 30 day money back guarantee and it accepts paypal for payment. I am neither a seller nor taking commissions. If you are interested, you can check it out for yourself at http://members.shaw.ca/sidewindercharger . I believe it is retailing for US$24.95. In fact, at time of posting, they are offering a $5 discount so it costs only US$19.95 now. Do check that your phone model is supported before buying!