Microsoft's first Window 8 tablet app spotted

snippets:

Bloggers have uncovered an application for Windows 8 that blurs the line between Windows, the web, and mobile using a new architecture from Microsoft.
The application is called Modern Reader, Microsoft's own version of PDF Reader.

Thurrott says that Microsoft is already adding .appx to Visual Studio 2012. The apps themselves can be written in C#, Visual Basic, and C++.