Mine is finally here. Amazing! I also have the Sony smartwatch. The Pebble is much better and easier to use. Pebble Notifier for Android is amazingly easy to use and all my wanted notification come to the watch now including Whatsapp and Chess Player.
Also loving the music remote function of the watch. Once selected it remains onscreen so changing a track can be done without looking at the watch.
I hope for the SDK more watch faces. I would like one with time, date and the current weather. I do hope that the coming apps for the watch works as the music remote app. I don't prefer a notificationcentre or something like that. The watch should remain simple.