What Motorola and Sony missed
The thing that Motorola and Sony missed, and that Pebble get, is that I don't WANT a cellphone on my wrist - nor do I want an Android tablet. I want a watch. The goal is to have a light weight device (so that I can wear it all the time), low power (so I don't have to always be charging it), simple to use (e.g. I don't have to do the hokey-pokey to see the time) device, that serves as an adjunct to my other devices.
I don't want to use it as the audio interface for my phone (really: imagine using your watch as a phone. It's inconvenient to hold it to your ear to hear it, and if you hold it to your mouth to talk, you cannot hear it, unless it is so loud as to be a speakerphone - and then you lose all privacy.) But using it to display a subset of the information on my phone (who is this? Red Cross? Fsking vampires - I told them I was on antibiotics, they can't take a pint) and to do a simple answer/bug off, and then let my headset (or my car's hands-free) do the audio - that works!
I used to have a Timex Datalink USB (till the crown broke off the stem) - I loved having world time, multiple count down timers, a copy of my appointments that is always with me, etc. This looks like it just might fill the void.