We have reported Modern PDF which was found in Windows 8 Build 7850 with very limited functionalities. A couple of new features has been unveiled in the PDF reader found in Windows 8 build 7955 which includes the new Print Dialog Box and the scroll bar. The Print Dialog Box clearly have the Metro interface showing Windows 8 would be much based on Metro UI.
Here are the screenshots-
(http://i52.tinypic.com/jt56k3.jpg)
(http://i53.tinypic.com/bjg49h.jpg)
To enable PDF Reader in Windows 8 build 7955 you have to first patch the Windows using Red Pill (http://www.windows7newsinfo.com/smf/index.php/topic,16484.0.html) which we have posted earlier. Once you have patched the system files just press CTRL+Shift+F9 (it would disable aero effects in Windows 8 and seems to be a way to enable UI for tablet PC’s). Then just go to the Program Files -> Microsoft –> Windows.GLCND -> GLCND.exe to run PDF reader