Not the Empeg Upgrader.

Mark made a FTP server in the Hijack and via SITE FTP Commands you can Upgrade the Kernel in 'simply' writing the new kernel on kernel_flash device.

The 'only thing' to see is the connexion to Mark's site downloading the last kernel release.

The upgrade of the kernel is only a command line tool for serial update and a connection to the player via FTP and SITE commands.

I recommend you to take a look on Mark's site, his explanations would be better that mine ....

Finally, my wish is to have a All in One Application to manage my Riocar .