- real menus
- pop-ins and more powerful tooltips
- trees (and when I mean trees, I mean tree-like widgets like the XUL <tree> able to render tens of thousands of lines w/o making the user experience awful)
- better integration with the OS/WindowManager
While we're (the Standards Community) now focusing on super-mega-hyper-useful stuff like an API to get the battery status (sic...), we're still unable to include in a web- or desktop app such widgets with a native look&feel. There are zillions of frameworks to ease the pain, but none of them is ready for desktop apps, and HTML+CSS+JS desktop apps need them to become mainstream AND cross-platform.I think then a new standardization effort between HTML and CSS is needed to make HTML UI appear. Let's look back at XUL and XAML a bit... Thoughts?