No, really. You'll have to punch the promo code "HEALTH" into the app, but once that's done you can flag down a roaming nurse to either drop off a flu prevention kit or administer those shots. Uber refers to the day's events as a pilot program flying under the UberHealth banner that could wind up marrying Uber's logistical might with even more valuable health services, like bringing doctors straight to doorsteps. If that sounds a little familiar, you may be thinking of a New York startup called Pager (which is actually helping power today's flu shot promo) that does something similar, and it's not hard to imagine a frenzied MD responding to an in-app house call by jumping into a Uber some day down the road.

Anyway. Uber warns that high demand means you'll probably have to be very patient, but hey -- free flu shots! Why the hell not. Seeing as how we're a bunch of cynical jerks, we feel compelled to remind you that Uber's operations definitely aren't all sunshine and roses. After all, Uber's got a precarious little balancing act going on: it's positioning itself to the people an valuable alternative to the traditional cab experience, and pissing off the drivers powering its success at the same time.