Maybe, 'stupid', is a strong word. Should I have said, 'technically ignorant'? My question is this: Would Canon rather have S110 buyers not be aware of the Eye-Fi alternative or is there some advantage here I'm not aware of?
I think "technically ignorant" could be appropriate. (Although I would phrase it "less tech savvy", but same difference.) Apple's been catering to this market segment for some time, now. (No offense to Apple users, but part of the appeal of their products is the perceived "ease of use", as opposed to Linux, for example.) And I think this shows that some people are willing to pay more for a product that they perceive is simpler. So no, I don't think you're missing anything. You're just not one of the people for which this has much appeal.
I doubt there's a price advantage. With the S110 at $450 and the previous model S100 at $250 that leaves enough room ($200 difference) for the high-end Eye-Fi Pro X2 16GB class 10 at $100. Other options include the $40 Eye-Fi Connect X2.
I just checked Amazon and B&H, and the S110 is currently on sale for $379. Yes, that's still more than the cost of an S100 + Eye-Fi card, but don't forget that the S110 also has a touch screen (which again, some people--e.g. iPhone users--might perceive to be easier to use), whereas the S100 does not. And even if the S110 did cost more, see my previous paragraph--"some people are willing to pay more for a product that they perceive is simpler".
As far as the Toshiba FlashAir is concerned; It doesn't appear to have a smartphone client app to immediately upload images to any shared networks.
1) You don't necessarily need a separate/dedicated app for that. If you're tech savvy enough, you can setup monitoring on a directory that will auto-upload anything placed in it.
2) This may not be desirable since you may not want to share/archive every single image you take. e.g. this is one of the complaints that a friend of mine has with the Eye-Fi, which is why I choose another alternative after trying his and listening to his experiences/critique. Yes, it's possible to change this behavior of the Eye-Fi, but a) doing so requires you sign up for an account (which I would prefer not to), especially since b) there are other alternatives that don't do this out of the box.
Again, the thrust is to get the photos immediately onto a public shared website before the camera is stolen, damaged, or confiscated by a controlling government.
That didn't appear to be the thrust of your previous post to me (or to Rorschach, apparently). Be that as it may, no, neither I nor my friend have been saved by this feature after experiencing a destroyed or stolen camera (more accurately, memory card), much less one that was confiscated by a controlling government.
I wasn't sure if Eye-Fi enabled cameras have an internal antenna
Although they may, that is not a requirement of being listed as "compatible" (e.g. the Nikon D7000 does not, but is listed as Eye-Fi compatible), and to the best of my knowledge, the Eye-Fi card has no way to connect to the camera's antenna to use it, even if an antenna is present.
Still, I haven't heard from anyone here that has direct experience with any model of Eye-Fi card; especially in respect to uploading photos and/or video to shared networks.
Yes, you have. I tried my friend's 16GB Pro X2 class 10 card, and after doing so and listening to his experiences/critique, I decided another alternative would suit me better.
YMMV - Mark