After many months of chat discussion, forum thread killing, and filibusters by AFK people, there has been a consensus reached in our new stance towards emulation in competition. The way the rule is written now, there is virtually no restriction on emulator usage so long as everything you do on the emulator equals everything you can do on the original console. That said, this is a vague description of the new rule, and you should read it for yourself in the updated competition rules before you submit.
This rule does not void any previously submitted stats, so there is no need to check anything you've previously submitted with an emulator.
On a side note, there was also a minor revision regarding Heroes team battles that is retroactive, so if you have a stat there, please check the current ruling and see if your stat is void.
If anyone has questions, comments, complaints, or bricks, post them here and try to get somebody to care.