What do you mean a specific phone or vendor?
I did say "almost all", and it was in reference to smart watches that are "phone enhancements" like the Samsung and I expect Apple's effort to be, or pair up to a tablet as you suggest, rather than those that are more standalone devices. Those that are from non-phone vendors, e.g. the Pebble and the Kairos I linked to, are obviously going to have to be as vendor neutral as possible to get any reasonable marketshare, and I'm fairly sure that Google will standardise an Android API to make things much more vendor neutral soon enough.
And yes, I've seen the Steel. I think it's fugly, although admittedly that's because I'm a fan of classic analogue chronograph designs from before the current fad for coaster-sized monstrosities came in; if my watch is going to be interpreted as a fashion statement then I want that statement to be "elegant", not "bling". That, I think, will be the biggest stumbling block to my getting a smartwatch; to borrow a line from Douglas Adams I no longer "think that digital watches are a pretty neat idea", and haven't worn one since the early '90s. Realistically, I think that is going to leave me SoL for quite some time, but at least there's a good chance there will be some killer feature(s) by the time that the old-school Swiss watchmakers have a decent range of smart watches.