First mover advantage??
Since when did the iPad or iPhone enjoy a first mover advantage in the tablet computer/smartphone markets?!
It's a testament to Apple's ingenuity and creativity that the author (and most other people) can't really remember the crappy, mature products that were tablet computers and smartphones pre-Apple.
Likewise, Sony and other companies have been making smart watches for years.
What Apple has done in the past is revolutionized existing markets (MP3 players, smartphones, tablet computers) and there's no reason why they can't do this with smart watches, regardless of if it's next year or in 10 years.