That much goes without saying. Our update.bin with jiggered shell command (but using an m.sh instead of jb.sh). I haven't investigated in depth... I suspect like Duokan the jailbreak certificate is not the MR community-shared one. So extra points for giving back to the community
and no wonder only we here have gotten things working through fw5.6.x via gandalf-enabled upgrades or serial JB.
for open development and cooperative, modular hacking.