Watch the video here: http://youtu.be/Zw2x-Vi0ojU This is a video comparing the differences between Google Glass Mirror API and Google Glass Development Kit. It helps you to make a decision on what you could be using for your Glassware. How to Install apps on Google Glass: http://youtu.be/6jl9FMOpt50 How to Uninstall and Backup apps on Google Glass: http://youtu.be/Ja_b5UKiQgg Google +: https://plus.google.com/+macykuang Twitter: https://twitter.com/MacyKuang