Windows 8 Store–Not Very Efficient
After trying for over a week to get Windows 8 to work effectively with my Dell XPS 17â Touch Screen Laptop I was finally able to do so, unfortunately I had to wipe off all of my software and do a total clean installation. I decided to just move on and go to the Microsoft windows 8 app store and to my surprise (Not really, Microsoft always does that kind of stuff) the store experience is confusing, not effective and wasteful, but the one thing that I could just not believe was the total lack of feedback to the user if an app was already installed, instead of getting a quick visual cue at the top level I had to drill down to find out the app was already installed. Seriously! add a small badged to the already installed apps please after a couple of days and weeks most users could forget exactly what they have already installed. 
Notice how at the top 2 levels it does not indicates that the app is installed, is not until the 3rd last level that the user finds out the app is already installed.
Victor C. Gonzalez "The Experience of User Interfaces" 
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Reblogged this on Sen's Blog and commented:
is it that True?
Windows store apps can run either in a full screen mode or in the docked mode. There are many win apps which are specially dedicated to social platforms and many others support interaction with social platforms and other sharing platforms.