Is there any point to preventing eFuse burning anymore? As I understand it, the point of it was to allow systems to be downgraded to earlier OS versions in the event someone ever created an automatic payload delivery system similar to the 3DS. Aside from TX's upcoming soldered in chip, which I assume would combine the functionality of the payload delivery dongle, is there even anyone working on this? I seem to vaguely recall reading something about how Firmware 4.1 had a viable exploit for this, but here we are a year or so later, and it doesn't seem like anything has changed. So is there really any reason to be worrying about preserving eFuses at this point?