Portable audio players that make sense as well as music

Finally someone is making a portable audio player that runs on plain old AA batteries. Why is this such a big deal? AA batteries are available the world over, as are AA rechargable batteries and rechargers. But unfortunately manufacturers prefer to build devices with proprietary lithium-ion batteries which although offering higher power to weight ratios also have the problem of dying after a few hundred charge-discharge cycles. This means unless your device has replaceable batteries you'll end up just buying another audio player - exactly what the manufacturer wants. Personally I prefer to buy technology that lasts 5+ years and AA batteries for power means battery power will not be the thing that makes them obsolete. I can tell you AA batteries have been around as long as me and that's a long time, almost fourty years. Can you say that about any other technological standard in your life? Maybe - but very few.