I just followed a taxi that had a 12% tip rate. I thought with the new automated payment systems [1] they were supposedly getting 25% now... edit: I should hav

I just followed a taxi that had a 12% tip rate. I thought with the new automated payment systems [1] they were supposedly getting 25% now... edit: I should have read about the * before I posted, but it's interesting to show then how much are cash/charge transactions by the discrepancy. [1] http://thenextweb.com/shareables/2012/05/14/how-3-simple-buttons-raised-tipping-by-144-million-in-nyc-cabs/ http://thenextweb.com/shareables/2012/05/14/how-3-simple-but...