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Scary: Windows 8 Ads
Microsoft made an interesting decision to monetize some of their pre-installed Modern (formerly Metro) apps with ads, like the Weather app, as shown above. I don't know about you, but if I paid full price to install Windows 8 on my system, the last thing I'd want to see is default Modern apps running ads! Usually, people pay to have ads removed from an application; not included. But honestly, it's not so much about these in-built ads; it's about where Microsoft might take Windows ad-based monetization from here -- perhaps in Windows 9, or beyond.
[See also: 10 epic Windows 7 pranks you absolutely must try]
Sweet: Windows 8 Free Games
Thanks to the addition of the Windows Store, free games are just a couple of clicks away! Eventually, I imagine the "top free games" section will be inundated with "freemium" games; but for now, there are plenty of worthy games to quickly choose and install -- all for free!
[See also: 15 gadgets every 8-bit gamer needs]
Scary: Windows RT and Windows 8
For the life of me, I cannot understand Microsoft's decision to market Windows 8 and Windows RT as separate entities in the manner that they have. Talk about confusing consumers, I'd love to be a fly on the wall the day that however many people go to install a Windows 8 desktop app to the desktop of a Windows RT device. I tried explaining the difference to someone recently (a casual PC user), and they immediately glazed over. I imagine such a reaction will be a common occurrence as soon as the average user hears/reads "Windows RT/ARM/Windows 8/Intel". Should be interesting to see how this one pans out...