Gambling machines too. There's a market for used small Atom based motherboards previously employed in betting and slot machines. They're often industrial grade really good quality hardware with plenty of serial ports even where not needed, and if lucky enough to find one with enough SATA ports, they also make excellent NAS boards. Linux support is usually complete since they're mostly used with that operating system. I had no surprises using one of them with BSD based Nas4Free.
With Windows -- either XP Home or 7 Starter -- they both barely chugged along, not to mention battery life.
Sometimes it’s nice to have a small server for a dedicated purpose. But would I have considered an Atom for anything else? No way.
Then again, I also didn’t consider anything but an Atom for this job.
Biggest reason this is annoying is only one onboard ethernet.