New meloson M8/S8 is on its way.
It's said this revised version of M7 has the following improvements:
Stereo through headphone
Low battery warning
Also, Tecsun has released a new stereo media player A9.
There are some photos in this post from Tecsun user forum:
A few interesting features include:
MP3 resume (very userful for audiobook listening)
DSP FM with ETM function
Dual Li-on battery support (BCL-5 or 18650)