Ideal D GUI Toolkit

[Tyler Jameson Little]

I've been looking into trying to fix QtD, but it seems writing a 
binding to a C++ library is a bit complicated. I've read on the 
forums that a native D GUI toolkit is the most desirable 
long-term, so I'd like to start that discussion.

First off, I've heard of the DWT project, which looks promising, 
but it seems like a direct port of Java's SWT instead of a 
reimagining using idiomatic D. I understand the allure here 
(works, little translation for new developers), but since it's 
not yet in Phobos, I can only assume it's still up for discussion.

Personally, I want these features:

* simple and extensible
   * minimal components (something like HTMLs feature-set)
   * custom components (embed OpenGL/direct frame buffer)
* "native" window decorations by default, but can provide custom 
decorations
* markup (like QML) or programmable (like SWT)

Nice-to-haves:

* hardware accelerated (2D OpenGL)
* GUI designer (much easier with QML-esque markup)
* part of Phobos

I'm willing to lend a hand, but I'd like to know in what 
direction the community would like to go. I'd also like to know 
the likelihood of getting a GUI toolkit into Phobos.

Thoughts?