Want to attend a game last minute but nervous about interacting with the "Looking for tickets?" community parked outside the stadium. There's an app for that. Beginning Thursday, fans can access tickets purchased through the StubHub mobile app, and then display them on their smartphones to be scanned for entrance to the park.
Some ticket vendors currently provide the option to purchase a ticket online then "print" to a mobile device via e-mail for scanning (SF Giants official ticketing, for instance, offers this).
Gadget Lab
See also:
wareground, Smartphone App Bypasses Printed Paper Tickets