there is bbUI we know, but anyway, it would be very cool if you would bring your page online again
You can still get the widgets here:
Staff UI Prototyper (read: full-time hacker)
My BB10 apps: Screamager | Scientific RPN Calculator | The Last Weather App
There is the Jquerymobile BB10 theme which I am curretnly using in my projectThe https://github.com/blackberry/jQueryMobile-BB10-Theme
+Like my post, if it was helpful!
i realy like this. especialy for quick mockups.