As of today you can generate and manage isometric drawings using the Autodesk Cloud with the AutoCAD® Isometrics WS technology preview.
AutoCAD Isometrics WS technology preview on Autodesk Labs
Create, store, view, and share isometric drawings across desktop, web, and mobile devices.
Create, store, view, and share isometric drawings with AutoCAD® Isometrics WS. The AutoCAD® Isometrics WS cloud and mobile service enables you to design and collaborate across multiple platforms—desktop, web, and mobile devices. Create custom isometric configurations, upload PCF files from AutoCAD Plant 3D, Autodesk Inventor, or 3rd party applications, and then generate isometric drawings with full DWG™ reliability and compatibility.
I went through the process by generating a PCF file from a 3D orthographic pipe spool I created in AutoCAD Plant 3D, but you could use another program to export a PCF file. I then uploaded it and processed the file which then generated the 2D isometric drawings in a matter of seconds.
Here is the pipe spool with flanges and a valve that I created in AutoCAD Plant 3D 2012.
If you need a PCF file to test: Download 10001
This is the upload page for Autodesk AutoCAD Isometrics WS. You can change a few settings and then go.
Here you can see prior isometric drawings I had created with previews. I can download or share the files.
A Bill of Materials complete with cut list is created.
Here is another isometric drawing.
If you are in the piping design industry and generate isometrics check out this technology preview. All we ask is you provide feedback on the preview which is easy to do and all the info is located on the Autodesk Labs page for this project.
(recovering former piping and vessel designer)
Go Process & Power Piping Designers!