This is the Web Forms 2.0 master bug. Each feature will be addressed and "bugged" individually.
Note that the Web Forms 2.0 draft has been obsoleted by the Forms section in the HTML5 draft:
So the URL for this bug should perhaps be changed to that.
See the note at http://www.whatwg.org/specs/web-forms/current-work/
"This draft has been superseded by the Forms chapter of the HTML5 specification, which now includes many of the features first defined in this document."
Bug updated according to Mike's suggestions.
inputmode is not part of HTML5 Forms specs, so this doesn't depent on it.
This should depend on #21903.
FWIW, MediaWiki has started using HTML 5 forms as of now, and that's likely to be deployed on Wikipedia within the next week:
This includes some features that WebKit already implements (required, autofocus) and some it doesn't (min, max, number, email).
(In reply to comment #5)
> This includes some features that WebKit already implements (required,
> autofocus) and some it doesn't (min, max, number, email).
Wow, that's awesome!
Depends on #33636 - input type=search not styleable with CSS