As you might imagine, this has led to industrious hackers - always on the lookout for something to crack wide open - discussing the ins and outs of picking apart Nintendo's latest piece of hardware, and one Japanese individual has actually done it.
According to Ars Technica, the hacker used a serial-to-USB cable and powered the device using U-Boot loader software. The necessary files were then extracted, allowing him to attach to his own Linux kernel.
While this proves the process works, the hacker doesn't seem to be focused on extracting the emulator or ROM files at present - in fact, his kernel doesn't actually do all that much. However, the door is now open and we'd expect others to follow his lead and hack the NES Mini - and Famicom Mini - so it can run other games and possibly even other emulators.