I wonder if this puts it 'ahead' of Zurb Foundation?
I have this sneaking suspicion that even if Zurb does a 'good' job, unless it's way better, they're never going to get the publicity these guys do, and thus won't have quite the same feedback loop.
Good question, I don't know the answer. Honestly, I've looked at Zurb Foundation a couple times, didn't see anything that looked like an order of magnitude of 'betterness' over Bootstrap, and decided to keep using Bootstrap because of that feedback loop.
Here's my quick (and probably incomplete) list:
- new 12 column grid
- responsive layout
- tons of new JS plugins
- stacked forms are now the default
- lots of new 'controls', like split buttons, new tabs, toolbars, highly styled radio buttons and check boxes.
- icons(!)