I made test with smartphones and limelight (stream) and opentrack software on a few smartphones. 1080p screen in my opinion is too poor for good game experience. Conclusion: Galaxy S3 (720p) - this is only for enthusiast... unplayable Galaxy S4 (1080p) - you can read medium/large text, but small is also hard to read. This is no solution to play in long way LG G3 (1440p) - much better than 1080p. It is playable and it much better would be use this screen is OSVR. 4K - not tested - but this should be destination screen. If you like to make test with smarthpone, there si GUIDE: https://github.com/opentrack/opentr...tion---google-cardboard,-colorcross,-opendive Is there any chance to get OSVR with 1440p screen? 1080p is a step backward.