Linux has had 20 years to prove itself, clearly it is not the right solution, or it would have made some traction at this point...
Yes . . . and it has. Hell, even demonstrated by the article in question here, or does "a big enough audience to justify day-one releases of AAA games" not count somehow?
Now, convincing me that an LCD touchscreen watch makes any sort of sense, that's another story. The Pebble is, generally, just everything a normal watch is with a little bit of extra on top. Anything that sacrifices outdoor legibility or battery life, however? Yeah, that's just companies desperately hunting around for the next big boom market because our insane society has decided that profits must always increase, and stability is somehow death.
"Conversion, fastidious Goddess, loves blood better than brick, and feasts most subtly on the human will." -- Virginia Woolf, "Mrs. Dalloway"