Lots of changes went into Qt since the last Technical Preview:

* Support for NEON instructions for increased drawing speed
* Refactored Kinetic Scrolling
o Kinetic Scrolling now default for all QAbstractScrollArea and QWebView based widgets
o QMaemo5KineticScroller is not needed anymore and was removed. To override scrolling behavior or to disable it altogether, QAbstractKineticScroller can be used
o Take a look at the kinetic scroller example (examples/maemo5/scroller) for information on how to tweak scrolling
* Lots of styling fixes
* QtMultimedia got an N900 backend
* Documentation now online at http://qt.nokia.com/doc/qt-maemo-4.6/
* New Maemo 5 specific examples:
o Showing Banners and Notes
o Using list pick selectors and value buttons
o Dynamically rotate UIs
o Creating Stacked Windows
o Using Maemo 5 specific Window States
o Grabbing the device’s zoom buttons