Google voice search with third-party apps is about to get really cool. Google is making it easy for developers to integrate voice search in their app. I've seen the Dominos commercials showing how to order pizza with their app, but I am not sure that it is using this Google API.
Google has announced a new version of Calendar for Android. I am using Sunrise because of its support for desktop OSes as well as mobile. If Google does the same with Calendar as they did with Inbox, I may consider switching back.