There is a problem with obtaining keyboard focus in a webview when using Qt 4.7.0. In the older versions, I spent quite a bit of time solving this, but my only N900 now has CSSU installed with Qt 4.7.4, so I can't test against the older Qt libraries. This means that there is likely to be a few problems for users that don't have CSSU installed, due to API changes or bugs that have been fixed since Qt 4.7.0. The usual fix for the thumbnails problem is to install the mcsp package http://maemo.org/packages/view/mcsp/. For some reason, I removed this from the list of dependencies. I've added it again ready for the next update. Installing the mcsp package also fixes the black screen problem, because it allows QtQuick 1.0 imports.