Thanks very much to Nocturnal for some help here. :) I've now got an article on my site on how to "browse" (note that I put that in quotes) the linux directory tree on the RS Media. It's a bit tedius but it works. Might help some get more information on the system.
Here's the article: Exploring RS Media's Linux System
Hope this is of some help to folks.
Ahhh..... that will only work if the executable is in the same directory. You may want to expand it to include executing programs in other directories.
Thank you (yet again :) ) Nocturnal! I've just updated the article to include your suggestions.