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Re:Show HN: 100 coffee shops to work from. 11 cities. Wi-Fi ... by qwerta on Tuesday December 09, 2014 @12:48PM (#8724284)
Turn it into app which would update wifi passwords as well.

Or someone already did that :-) http://www.techsupportalert.com/content/global-wifi-hotspot-...

Re:Show HN: 100 coffee shops to work from. 11 cities. Wi-Fi ... by mikaelcho on Tuesday December 09, 2014 @01:36PM (#8724668)
Nice. Ya, updating the password would be great.

Avoids the awkward exchange at the register asking for a password.