Being more of a consumer of this stuff, I am not an expert. But I am picky. The iwatch seems clunky and limited like the google glasses. And it is expensive. The user interface is still not quite there for most of the devices including smart phones. The UI will be even more of an issue with the smaller gadgets like the iwatch. I presume that it is still tethered to an Iphone and probably communicates via Bluetooth which is good. Putting that much power into an ultra-small device will make it very expensive. Miniaturization is expensive.
Just my opinion, but the iwatch seems like a fringe gadget that only the rich techy people will own and it will fade away like the google glasses.
That is my “expert” opinion.
I just had a conversation about the iWatch with my 9 yr-old this morning. I told him it’s more a fashion statement than a tool. And a pricey one at that ($10k for one model?!).
Of course if it was gifted to me I wouldn’t complain 8^)