Google Now might be smart and all that but it's somewhat limited in what it can do when it comes to interacting with the rest of the apps and content on your Android smartphone. It can do searches, take notes, set up alarms, open apps, and some other basic tasks. Once it moves away from that search app, however, you're on your own. Not a problem for people with near perfect mobility, not so much for those with physical disabilities. Google is announcing the start of beta testing for a Voice Access app that addresses that need, allowing users to control other apps using only their voice.