Comment RMS has been quite clear on his lines for years. (Score 1) 480
Stallman has said in numerous talks that he doesn't own a cell phone because not only due to lack of respect for his software freedom but also because they are (more properly identified as) trackers. He rightly objects to handing over data to track his location, as is part of a cell phone's normal operation. As with so many of these issues, his precience in looking out for his own privacy predates the headlines—Jeremy Scahill and Glenn Greenwald of The Intercept report that the NSA has been using SIM cards (commonly used with cell phones) tracking data to target drone attacks: "What's more, he adds, the NSA often locates drone targets by analyzing the activity of a SIM card, rather than the actual content of the calls. Based on his experience, he has come to believe that the drone program amounts to little more than death by unreliable metadata.".
As for "openness of source", you'd do well to read the summary
Stallman has also long pointed out that code in unchangeable hardware (code in ROM, for example) is equivalent to hardware in that the user and the developer are facing the same hurdles to modify that code. So I'd imagine that a toaster with code in ROM would be a candidate toaster for him to own. But so many devices these days have updateable code. If the code can be changed the user and developer might not be on an equal footing with regards to who is allowed to change that code (free software grants you the freedoms nonfree software does not grant). Thus this more common occurrence raises all the issues he's been talking about, writing/publishing software for, and organizing against for decades.