Nice video, helpful to people deciding between the two. I really like some aspects of the Pebble. I like the community support aspect for one thing... with the Sony, you are much more dependent on Sony and a smaller number of developers to add value. I like some of the apps/extensions available on the Pebble. I especially like the greater number of watchfaces available... I'd pay for the one you show on the Pebble... a low-power watchfaces that shows weather and notification counts? Sure would save the power button from all the times you need to wake up the phone to check an extension.
Ultimately, both watches will be pushed aside by "smarter" watch designs to come in the next year or so. The HOT watch, or the Gear2, or something like the Omate. I am continually tempted and would make the jump if these were a bit smaller, a bit cheaper, and (biggest issue...
Android devices: Samsung Galaxy S III running AICP 5.0 (retired phone: HTC Thunderbolt running InfectedROM NuSense Eternity); Nexus 7, HP TouchPad running Milaq CM11 nightly, Sony SmartWatch 2