The chain of trust still depends on trusting the first install
There are ways to establish trust for the first install even if it is not from Google Play Store. For example, if I download the APK of VLC from https://www.videolan.org/ then I'm piggybacking on the SSL CA infrastructure, which assures me of one of the following:
How likely are the scenarios other than A?
8 core CPU
I'm getting conflicting results while trying to figure out whether the 8-core CPU refers to eight independent cores or to eight half-cores like in AMD Bulldozer.
8GB of GDDR5 [and moreover, installation of a game for Windows is] not as quick and easy as PSN.
Good point. I'll try to ask the PC fans how important a one-step, controller-operated installer is in the next article, and I bet that by the end of the year, they'll probably have come up with some drawback of unified GDDR5.
music games in general
To pick random examples from the sixth and seventh generations, my cousin plays StepMania and a lot of other people play Audiosurf.
3D platformers
A lot of the Sonic games are on both consoles and PC. Sonic Generations, for example, is on Steam.
light gun games
I thought those had gone out of fashion on consoles after the sixth generation because light guns don't work on LCDs. Or are you including the Wii Remote (and Namco's clone thereof called the Guncon 3) in the category "light guns"? In any case, there are plenty of mouse-controlled shooting gallery games for the PC, many in the style of the classic Area 51/Time Crisis style arcade light gun games.
kart racers
You mean like Split/Second, Blur, Sonic and Sega All-Stars Racing, and its sequel? But in general, thanks for reminding me of what genres are still underrepresented on PC.
if you buy an Xbox, you want the exclusives, just like if you buy a PSfoo you want those exclusives
And if you buy a gaming PC, you want the exclusives. There are currently a lot more exclusives on PC than on any given console, though that includes a lot of non-AAA games, and it may change in this generation depending on whether one classifies OUYA as a PC or a console.
Umm code up the solution yourself?
Some of these cases involve limitations of the API to access peripherals. Coding up the solution oneself would mean the user would have to root the device first.
"The one charm of marriage is that it makes a life of deception a neccessity." - Oscar Wilde