I guess there is no cheat at all. The last cheat was "leaked" pretty fast after the alpha 1 was launched.. Now three days later , still no "leak".
if i recall correctly the last cheat wasnt leaked. they put it in the everything you need to know for the alpha post on the forums. so they basicly told everyone. and i think they did it with a good reason.
they didnt want to release the full coaster editor because it wasnt ready yet, but they still wanted to show where they were and get feedback.
i think that is why the coaster editor is what it is now. even though it wasnt a major feature on alpha 1 they got loads of feedback on it.
im guessing they will be doing it all the time, put features that arent quite ready with a "cheatcode" in game so people can experiment and get their hands on it.
give feedback and that way improve whatever the thing is they put behin the cheat
personally i think its a nice way, for us and for them to see new in progress elements of the game. it feels like we actually make a difference. the devs listen to the feedback and that is what makes this game so wonderfull.
the love and compassion these guys put in is absolutly amazing. cant wait to see what else they got in store for us!