We have collected all your feedbacks and recommendations and decided to renew our 3DM View developing a new viewer that would support more formats (including 3DM format) and contain new features.
Try our new ViewER here: https://play.google.com/store/apps/details?id=com.amcbridge.viewer
3DM View is an Android application for 3D model rendering that supports openNURBS (.3DM) files including files generated by Rhino™ family of products from McNeel & Associates - http://www.en.na.mcneel.com/. The detailed format description can be found at: http://www.opennurbs.org/docs.htm.
Models for rendering with 3DM View must be stored locally on an Android device (models can be loaded to the device using a browser download manager, email, or USB connection).
3DM View supports a standard set of user manipulations: such as PAN\ZOOM\ROTATE\FIT.
The “Open File” feature enables a new model to be opened without returning to the preview window.
Models can be opened directly via the file manager.
(NOTE: Models with wireframe data only are not supported. For the model to be rendered, it must be saved in shaded mode.)