I tried FeedbackReporter.framework from vafer.org but it does not want to work .: - /So, any suggestions for a great Cocoa feedback framework?
FeedbackReporter.framework
Try this on Jon Rentzsch:
http://github.com/rentzsch/jrfeedbackprovider/tree
This is a good start.
There is also OpenFeedback at http://code.google.com/p/appcaster/ . It also includes an appcaster, which you may find useful. I personally ended up with JRFeedback.
UKCrashReporter handles the detection and sending of failure logs (for example, when the application starts) and sending feedback from the application. I was very pleased with this.
I have never used it, but it seems that the author of Feedback Reporter controls the stack overflow and will try to help if you take the trouble to explain your problem.