void Html5ApplicationViewer::loadFile(const QString &fileName)
{
m_d->m_webView->setUrl(QUrl(Html5ApplicationViewerPrivate::adjustPath(fileName)));
}

Should be using QUrl::fromLocalFile, as toLocalFile does not work for urls without a file: scheme.
Currently the generated code does not work on Qt 4.8.0 (we are discussing reverting to the old behaviour in 4.8.1 on qt-development mailing list)
And it won't work on Qt5