I've recently started using Zendesk to handle support requests from my users either via email or via Google Play. Pretty useful. They also have native SDKs for in-app support system. Unfortunately, there's no Adobe Air ANE.
I've created a product suggestion. https://support.zendesk.com/hc/en-us/community/posts/213132507-Suggestion-Adobe-Air-Plugin
If you think this is something you'd benefit from, please add your vote.