This taxi service app add-on would call and authorize a payment for a taxi using one's GPS data. It would be triggered by waving one's phone wildly above one's head.-- Voice, Jan 01 2017 Clever, innovative, intuitive. Easily the best idea this year! [+]-- whatrock, Jan 01 2017 Maybe it could flash a message on the screen, such as "Hi there ! I'm ostentatious and extremely stupid ! Please come and snatch my expensive phone from me !"-- 8th of 7, Jan 02 2017 //waving one's phone wildly above one's head//
Cross-marketing opportunity: optional mailed-to-app-purchaser ice grips (removable cleats for boots, to stop slippage on ice).-- Sgt Teacup, Jan 02 2017 random, halfbakery