Public repository for Unity3D Mobile Paint plugin
Feel free to post them at https://github.com/unitycoder/UnityMobilePaint/issues
Is coming up in the wiki page https://github.com/unitycoder/UnityMobilePaint/wiki
You can purchase this plugin at https://www.assetstore.unity3d.com/en/#!/content/19803
http://unitycoder.com/blog/2014/07/15/asset-store-mobile-paint/ (with downloadable android build demos)