Near the end, the article touches on the fact that orientation matters for the phone part, but not the software - part of me wonders if even that is necessary.

Near the end, the article touches on the fact that orientation matters for the phone part, but not the software - part of me wonders if even that is necessary. Would it be too hard to install two microphones and two earpiece speakers in the thing? I imagine they'd also have to have some kind of weird aerial switching as well, though, as traditionally those are always at the one end; I seem to remember it was to pass regulations.