Can someone explain to me why SRAMs eTap system is considered wireless when it still has a battery on the derailleur and another on the brakes, not to mention the fact that you still need to plug them in to charge? Isnt that just a glorified version of Shimanos Di2 system, which at least has the decency to call itself a wireless shifting system with internal batteries? It seems like SRAM is just trying to jump on the wireless bandwagon without actually delivering a truly wireless experience. And dont even get me started on the whole proprietary battery thing - whats wrong with using standard batteries like everyone else? Is eTap just a marketing gimmick to get people to buy into the latest and greatest or is there some actual innovation going on here?