The Avia Feedback Box is a feature request system for visitors and customers. They can suggest new ideas, vote on existing ones, and track your work progress.
At the beginning of each month a user/visitor get 10 votes to distribute. They can choose to use all their votes for one idea they really like, or spread them across between several ideas 
If you want to improve your product or service and also want to integrate your customers in an entertaining and playful way this is definitley a plugin you should consider!
The Plugin is based on the famous Dropbox customer Feedback tool Votebox. Kudos to the dropbox team for such a great way to gather customer feedback 
Options of the plugin:
- 3 skins (light, dark and structure only)
- Access rules so either everyone or only registered members can submit new entries and vote
- Set if new Feedback should be published immediatly or be sent as draft
- Special Commenting function for the admin to keep users posted
- See additional options on the scrrenshots provided here
- Valid HTML , Compatible with FF2 ,3, Safari, Opera, IE7 ,8,9
External scripts and resources used: