If Microsoft are pushing 'mixed reality' so hard, and even calling their apps 'mr + keyword' now, what's to stop them trademarking 'mr + keyword'? Legally, they would have a much better claim as they invented 'mixed reality', they didn't invent holographics or the term 'holo'.
Every company is defining mixed reality as holograms appearing in the real world. The Fragments game page you linked to makese use of the term 'holograms several times. There is only a handful of 'mixed reality' headset manufacturers, and another one of them (besides Microsoft) has branded themselves as Holo.
As I said, Robert Scooble is so in tune with the public that he single-handedly killed Google Glass with the unfortunate 'glasshole in the shower' pic. He also still can't comprehend why his darling Hilary, with all her Saudi Arabian millions of dollars, failed to beat a 'misogynist' such as Trump. I've no doubt people will search for 'mixed reality p***' etc. I'm still not sure they will search for 'mr p***' as much as 'holo p***', and anyway, looks like 90% of people in a couple of years time (unless Magic Leap debuts or Apple bring out their own device) will be searching for 'HoloLens p***, in which case a name like 'HoloP***' would be worth far more than 'MixedRealityP***.
I'm really speaking from a guy who has invested heavily in adult holo names. Microsoft trademarks aren't a threat there (possibly for names like 'liveholochat'). Already several adult vr pay sites have branded themselves as holo.
There's also the problem of 'merged reality'. If mixed reality is truly a seperate thing from virtual reality requiring its own name for branding and keyword searches, then why deny 'merged reality' it's place in the sun too? In which case, there's no room in town for both, at least as far as the acronym 'mr' is concerned. Perhaps mixed reality will become shortened to 'mxr' or such like (or even.....holo, hehe ).