StablexUI

Macro driven ui engine for Haxe NME.

Supported targets: cpp (iOS, Android, Blackberry, webOS, Windows, Linux, MacOS), flash, html5

online docs on API and basic features: http://stablex.ru/ui/doc

Features:

Separate "view" from "controller". Create all UI via xml (but you still can create ui with plain haxe);
No xml parsing at runtime. All xmls are preprocessed at compile time, so your app is loading faster. Also everything is still strictly typed ;)
Writing handlers (plain haxe code) right in xml;
Really crossplatform! Works in cpp, flash, html5;
Only parts of framework you use are compiled to your binaries. For example if you don't use buttons, their classes won't be compilled.
Relative positioning (you can define position by any border of element - left, right, top, bottom in pixels or percentage of parent's size. Define width/height in percentage etc);
You can write haxe code right in attributes in xml to acces anything from anywhere! For example:

<Text text="'Hello world!'" x="nme.Lib.current.stage.stageWidth/2" />

Easy skinning with 3-slice-scaling, 9-slice-scaling, tiling with texture, filling with color, gradient fill or your own custom skin processor;
Don't worry about forgotten eventListeners. Just use widget.free() method to let GC destroy the object;
Other basic features are described in docs: http://stablex.ru/ui/doc

Few elements are implemented now. But i found that's enough for majority of mobile and web games, so i've decided to publish StablexUI.