If one reads enough of the the BigDisk thread linked above, one may discover a few cool features:

There's a pre-installed script on the player to switch between the two latest versions of the player software: v2-Final and v3alpha11, without having to re-install anything. This can be run over a serial connection, or from a telnet session.

There's a copy (APK file) of the Android "Empeg Remote" app on the empeg, which can be installed to a smartphone by surfing to the empeg's built-in webserver and then clicking on the APK file.

"Empeg Remote" is seriously sexy stuff, and so few people seem to know about it.