Re: What if ...
While they don't necessarily have to use exFAT for that, it is probably the logical choice. ExFAT is a filesystem that plays very well with external media and most operating systems, Linux included if the package is installed. Most other filesystems don't meet one or both of those requirements. If they're also using Linux, you have many other options including the basic EXTs, but that will be more trouble for them than it's worth if they use Windows or Mac OS. Of course, the code installed to let Linux deal with exFAT at the moment won't be all that fast, which a kernel implementation would fix. I am therefore quite hopeful that this does get implemented soon.