Well, it's only been about a month since the last update to Autodesk Meshmixer, which included more powerful 3D printing workflows. Today, Autodesk Meshmixer updated again with the 3D printing workflows you requested, many general enhancements, and a few surprises.
We are having a lot of fun playing with the newly added "Make Pattern" tool and 3D printing the results. Make Pattern lets you create a unique cage-like structure that conforms to an objects surface (like below) and more.
As for the 3D printing additions, one highlight is the support for assigning multiple materials (for printers that feature multiple material prints). For example, you can now assign what objects are assigned to the Left/Right extruder for your Makerbot Replicator 2X. Here is a print I made with 2 materials on an Objet Connex 500. It is a 123D Catch capture of Autodesk's CEO Carl Bass in Vero Clear combined with the Autodesk brand "A" in Vero White. This was stylized and prepared for the Objet printer all in Meshmixer, then printed all in one go!
Last but not least, thank you for all of your feedback on Autodesk Meshmixer, and please keep it coming! Due to growing popularity of this free app, we are looking to make more regular updates so you can continue to push the limits of your 3D printing amazingness. So, if you would like to give us praise or even scold us, send any feedback to firstname.lastname@example.org.