Google has no monopoly, I have one at home to play
Seriously, I have no fear on google, M$ has until now the desktop market (thanks god, still a platform minority on big datacenters, however not a minority on number of machines, cause one thing done with microsoft requires at least 5 times more machines than done with UX and variants).
They will continue to release stuff and more stuff, by what i'm seing, they all need ALOT of work b
before making mainstream, and competion nowadays is quite large.
Relax people.