Not too sure
Anyone would want to hear the things I mutter to myself.
At long last, the war against privacy-invading lip readers and Alexa eavesdroppers may finally be won. Boffins at MIT have developed a silent speech interface called AlterEgo that allows wearers to communicate via text translated from neuromuscular signals – tiny face twitches – without a visible tell. It's a mechanism for …
Not compatible with Google Glass. Wait - we need more ears.
Damn machines! They're going to put all the Vulcan mind melders out of work.
Wait! That! THAT is what I want. Forget the Messy Mask. Just wire my comms system straight to the source, thanks. Can we do more research into that please? I don't mind invasive at all, as long as it's SAFE. And while we're in there, can you add a clock? Maybe a memory management tool? (But not the one from Johnny Mnemonic, thanks. How much data fits on a micro SD card these days? Why mess with meatspace.) How about FM radio? I mean if you're going to be cracking my skull open, might as well opt for all the extras in one go. But I wonder, if you upgrade to literally hear voices in your head as the norm, how do you know when you've gone crazy? Maybe that's where cyberpsychosis really starts...
Well, apart from the fact that I don't much like yours...
You have to carry them around in your hand/under your arm/in a bag or hire a sherpa/porter/bus boy
Wireless/Bluetooth can be hijacked. Wired can be listened to acoustically and keystrokes uniquely determined. They are fundamentally unsecure.
The mask, otoh, looks cool and scary. It may not be any more secure. It might get you beaten up by burly men in pubs. Worse (or, depending on your POV, better) things may happen to you in pub toilets. But it does look cool and scary.