Uber, the rebellious car hailing smartphone app, is a big fan of bribery as a sales tactic. To break into New York City's taxi market, they offered users free rides. At South by Southwest, they rode the digerati around Austin. For a couple years now, they've doubled as an ice cream truck for a day. But now the company is offering the closest thing to being a pampered, infantilized startup employee: on-demand kitten delivery, plus cupcakes.