Ok Cityville was launched only a few weeks ago but there are already working cheats for this game. I only managed to find one that works, but this one works good, so no need for more.
Check out this video above on how it works and you can also download it from the video description.
Download the cheat: http://bit.ly/cityvillecheatfree
If you have problems using this cheat, download the instructions: http://bit.ly/ewXg9z
This cheat will give you coins, energy, cash and goods for your CityVille account. Use it to defeat your friends, but please don't abuse it. Please post any questions in the comment section