I read about these bracelets that use 'a performance technology designed to work with your body's natural energy field' they use a hologram to 'resonate' and 'respond' with your body (/www.powerbalance.com/powerbalance) . Then i saw Kate Middleton wearing one in the paper this morning with a lovely silk dress - and after a google it seems everyone is wearing one - EVEN the business man sitting opposite me on the train had one on with his suit! I am not sure i buy into the idea that a hologram can respond to your energy field for a reasonable $29.95- (and what response would it have?)
I would also like to point out that the scientist in the paper said that these have not been proven to have any effect on your power, balance or strength - but there's no denying celebs love a craze and this seems to be the latest one!
I personally would like a hair slide invented that can improve balance on a night out when wearing high shoes!