So I got a Nexus 4 and did a quick video to show you the HD playback capabilities. Check out the video here:
Nexus 4 1080p FULL HD and 720p MKV Video Playback Test - YouTube
Check my old thread for the Samsung Galaxy S2 1080p FULL HD and 720p MKV Video Playback Test:http://androidforums.com/showthread.php?t=339429
Nexus 4 1080p FULL HD and 720p MKV Video Playback Test - YouTube
Check my old thread for the Samsung Galaxy S2 1080p FULL HD and 720p MKV Video Playback Test:http://androidforums.com/showthread.php?t=339429