I apologyze for my English; I'm from Argentina.
I am an Xtreamer user. I had suggested in their forums to develop functionalities about GAPLESS reproduction of files (music and pictures). The answer from moderator (user=SeeMoreDigital) was:
Contact the "Rockbox" developers and ask them if they are interested in providing a "third party" firmware for the Xtreamer.
Please see this link:
http://forum.xtreamer.net/viewtopic.php?f=108&t=7072&start=10Then I ask if your team has interest in such project.
Tanks & regards
NICOLAS (Argentina)