Fair enough, but if you've been rooted, they can do whatever they want to your system, including installing keyloggers and shells around certain programs. It's especially dangerous when the hit is to take *future* data, so at that point, it's too late.
I'm looking forward to write userspace filesystem drivers in Linux using Perl
Very interesting in a sick-and-twisted sort of way... do you have any reference material on the subject? I wouldn't mind reading up on this. Naturally there is no way in heck I'd do this for anything than something that wanted to "act" like a virtual file system, wouldn't trust it to important data, etc, but it does sound cool.