Remote widget. You can use and control any widget on your watches like on homescreen. Total musthave for me. I have in there yatse xbmc control, local rain map, another weather widget, Google music native widget, music volume widget, settings cont...
What is the best video player for this version?
New MoBo player is great! https://market.android.com/details?id=com.clov4r.android.nil&feature=search_result
OK, if you like my suggestions I have couple more of them.
For example smartsquare - foursquare on watches.
Watchify - notification from every app
Smart note - I am using this like grocery list - food shopping has never been so easy :)