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Scary: Windows 8: App Fragmentation
Perhaps one of the most glaring inconsistencies I've seen in Windows 8 thus far is the discordance between Modern and desktop apps. The Skype app is a perfect example, in which you can have a "Windows 8 Modern UI" version installed, in addition to a desktop version. Both have completely different UIs and they run independently of one another. It's not really a big deal, until you get to things like installing Internet browsers. Because the installations are completely different, all the bookmarks and settings you have in, say, Chrome for Windows 8 will be completely separate from whatever you might do in the pre-existing version of Chrome that runs on pre-Windows 8 versions of Windows. Get ready to start picking and choosing!
Sweet: Windows 8: File Transfer
FINALLY! Microsoft finally coded the ability to pause file transfers in Windows 8. Not only that, but they also included a real-time data transfer rate that shows how fast your files are transferring. Right now, this is one of my absolute favorite features of Windows 8!
Scary: Windows 8: Vendor App Woes
Many early adopters of Windows 8 are going to be sure to notice one thing for a while: vendors are going to need to either redesign their apps to function properly within the Windows 8 desktop environment, or they're going to need to re-code the app from scratch to work within the Modern UI. At the moment, there are quite a few apps that just aren't working properly on Windows 8. If you find that you're the victim of this, try running your app in compatability mode. That worked for me in one particular application, but I found that it still wasn't functioning quite right. Hopefully, vendor app woes will be worked out sooner rather than later.
[See also: 20 awesome office gadgets and must-haves]