Thanks for the corrections! I usually learn as much from the user comments as from researching the article and this story is no exception.
Perhaps I'm just paranoid (well, I know I am), but I still don't want access to my root file system to go through any sort of userspace intermediary. I am glad to know that it is possible.
"Embedded" covers a lot of ground. I worked on an "embedded" system with 1GB of RAM back in 2002. Whenever I think that even the tiniest devices have megabytes of RAM, someone proves me wrong again...
I don't discuss performance in any detail any more. :) No matter what you say, someone else's workload performs better or worse, and the software can always be more optimized.