Yeap, i emailed sony as well and was told it's simply not compartible, but no doubt xda community will have a go at it. Sad though, am pretty sure Sony are just as frustrated as we are. I can see them doing what Samsung's done and coming up with their own wear OS.
It is a tough decision for Sony. Should they like other vendors keep on releasing devices that are so far from optimal, OR should they wait for the technology to ripen?
Currently ALL 'smart'watches has some serious compromises. Either a very limited display or a very limited battery stamina or huge as a brick.
And before someone invent something like a true-colour e-ink-like display, or a battery revolution with MUCH higher energy density, we are not going to get smartwatches that are useful for the general public.