Hi guys,
Thanks for the feedback (would have been better on SonarLint mailing list). Just to be clear: we are not opposed to a Netbeans integration, but we don't have the bandwidth to support one more IDE currently. Also nobody at SonarSource is using Netbeans AFAIK.
If you are really interested the best option would be to start a community contribution. The "analysis" engine is already a separate library (sonarlint-core) so the work can really focus on Netbrans integration/UI.
If someone is interested to lead this project, please continue discussion on SonarLint mailing list.
++
Julien