Doesn't Foundation require jQuery? Seems like it's a non-starter for anything written in the past 2 years. Maybe Bootstrap does too, I haven't used it in ages.
Really? I've subscribed to a few web SAAS apps recently and they all seem to have most of their requisite jquery (in one case, quite a bit of the whole thing) compiled into their app.js.
Fair enough. I don't do a lot of event dispatching (well, bubbling), so I haven't found it a clear win for my use case, but it's only 10k more than jQuery (gzipped), so I can see that it would be good for a lot of them. As I move to something more componentized instead of the goulash I have now, I suspect that this will change.