You'd lose all of that battery life if it had android. Most of the DAPs that run android well only manage 8 hours of playback; just a result of the hardware required to run android smoothly and the battery consumption of that hardware + good DAC/AMP consumption. I'll take the linux flavour as I'm not interested in streaming. As far as the USB, I went ahead and bought the USB to Walkman dongle. Yes I'm at risk of losing it, but I keep it in a tiny pocket of my bag and it saves me carrying an extra cable + a little bit of peace of mind should I lose or damage the original cable.