Knowing Google, it will be an Android API service where you can register your app, so here Uber is an example in the screenshot but other apps will be able to register too.
That would actually be amazing the see the different prices / times for each service like Uber / Lyft / Taxi / Bus / Metro / etc.
Great point. Google wants all the world's data so I'd say they'd be much more interested in using Uber to get all the other services to quickly follow suit than try and make this Uber specific and a lead gen tool for a while.
It seems like they're on the cusp of offering something similar for Google Now voice actions based on the Android Wear preview SDK. As both a user and developer, it's a welcome addition.
That would actually be amazing the see the different prices / times for each service like Uber / Lyft / Taxi / Bus / Metro / etc.