Hi, i emailed developer pamaury and at this time he's not able to work on the sony nwz linux port.
https://www.rockbox.org/wiki/SonyNWLinuxPortI have the nwz e353 which is one of the models where if the backlight turns off the audio stutters on battery, not when playing and charging. At this time that is the biggest issue I have with the port, as it probably reduces battery life a lot.
Would anybody be able to fix this problem and/or the others listed. I'd be willing to test new builds for this.
Please reply if you have interest, etc.