[MeeGo-dev] Handset UX rotation -- how is it implemented?

[Javier]

I'm trying the Handset 1.1 final-demo images on my N900, and I've found 
that in both landscape and portrait modes, the X11 root window is 800x480 
(that is, always portrait).

However, Qt applications (for example duicontrolpanel) render just fine 
in portrait. This means they (or Qt) must be doing some kind of rotation
implemented on the X clients themselves.

To be honest, this comes a bit of a surprise. Is it really expected that 
every X11 client application will have to implement their own means for 
rotation, or is the plan for rotation to be eventually implemented the 
XRandR way?

Javier.