I just sold mine. But it did not wipe everything and return to its original state. It still has all of the themes I downloaded, as well as google maps and Berry 411, as well as OS 4.1.036.

Now 1. should it have reverted it to day one, like the dash button does
2. What was the original OS on it
3. How would I revert it and fix that stuff. I give it to the guy Sunday.

If you use the "wipe handheld" option on the BB itself all it does is remove all your user data. All the apps and OS will remain unchanged, just your data is gone. If you want it back to original, use JL_CMDER to wipe it and reload the OS on it but don't restore any backups.