Windows 8 new AppX PDF reader
What does AppX mean? AppX is a new type of packaged application model developed for Windows 8, and it very closely resembles Windows Phone 7 application packages. That AppX apps resemble WP7 application packages may open the door in the future to the same app working across mobile and desktop environments seamlessly.
Windows 8 is set to include a new PDF reading application called Modern Reader. What makes Modern Reader important is that it was built using the new Windows 8 AppX technology, making it very special. In fact, Modern Reader could very well be the first AppX application that has been found. What follows are three screenshots of Modern Reader, which is in and of itself a rather simple application.