Some progress on the french side: we enabled the telnet daemon using this custom firmware:
http://ps3linux.fr/E60/patched+x/
Just create a customrun.sh file at the root of the device and copy this to the file:
Code:
#!/bin/sh
mount devpts /dev/pts -t devpts
telnetd -l /bin/sh
It will be renamed and executed on the next device reboot (to avoid any bricking script, it is renamed). Then you'll just have to telnet to the device, you'll get full root access to the device.
Someone also reported success at executing compiled code using Samsungs' toolchain. Very promising indeed!