It is, although you have to read between the lines (and perhaps know a bit of Schneier's previous writings): when Schneier talks about locked down devices, it's

It is, although you have to read between the lines (and perhaps know a bit of Schneier's previous writings): when Schneier talks about locked down devices, it's helpful to know that previously he has talked about open source as necessary for good security (http://www.schneier.com/crypto-gram-9909.html http://www.schneier.com/crypto-gram-9909.html), therefore locked down systems where you can't get the source (or run your own software) cannot be fully vetted for trustworthiness. This applies on two counts: if you cannot get source, you have to have faith in the competence of those providing the software, as well as trust that the motives of those offering it are in your best interest. With open source software, you don't have to make either one of these (dangerous) assumptions.