For this reviewer and everyone wondering what you can do with one of these watches? It's been less than a week since Android Wear was announced and already there are more than 30 apps that support it. Just think of how many apps you might have in a month or in 3 months. And the watches/OS (Android Wear) aren't/isn't even really out yet!
Everything from using Twitter-apps, getting news on your watch, getting easy recipe instructions, ordering food, taking notes, automated functions (IFTTT), messaging and social apps (Hangouts or based on location, like Glympse), flight information (from Google Now and several airlines), using running/fitness apps, and language learning, are now doable from the watch.
Source: Android Central http://m.androidcentral.com/android-wear-apps