You see, Developer Preview 3 is the first release to incorporate the Google Play Store. You can download apps (including paid titles and beta tests) directly to your watch instead of queuing them up on your phone. You can't browse to the same extent that you would on a handset, but you can skim recommended apps and search for specific titles. More importantly, you can download apps without sending them to your phone at all -- in fact, developers will have the option of writing apps that live exclusively on your watch. While you're still still a long way from Android Wear devices that are completely independent from your smartphone, the Play Store addition represents a big step in that direction.