I think that the best way to be GPL compiliant and at the same time to gain an advatage from GPL, is to move the whole project to an public GIT (or SVN e.t.c.) repo. So EE developers or anyone who is interested in developing (or compiling) will get the latest code.
p.s. I didn't have much time to examine source code released (need to work on my primary job and sleep only 3 hours today , so sorry if I miss something but..), at first glance:
gst
directfb
gcc
sd8* and ifupdown\iwconfig\iwpriv
ep3521*
missing.