Which mobile commerce innovation first allowed consumers to hail and pay for transportation directly through a smartphone app, fundamentally changing urban mobility retail models?

The transportation industry has been transformed by mobile commerce innovations in recent years. From booking rides and tracking deliveries to purchasing transit passes and managing fleet operations, mobile technology has revolutionized how transportation services are bought and sold. This poll tests your knowledge about a significant mobile commerce milestone in the transportation sector that changed consumer behavior and retail strategies forever.

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Uber's ride-hailing platform (launched 2009)
Airline mobile check-in apps (launched 2008)
Mobile train/bus ticketing systems (launched 2007)
Car-sharing membership apps (launched 2010)