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"Faster and safer than typing a password. Just Knock."
http://www.knocktounlock.com
4 comments
5/11/2013
Tap your iPhone to unlock your Mac
http://www.knocktounlock.com/
163 comments
5/11/2013
Reddit
Kock to unlock your Mac
http://www.knocktounlock.com/
5 comments
5/11/2013
apple