kuiviewer 4:4.8.3-0ubuntu0.1 (amd64 binary) in ubuntu precise

 KUIViewer is a utility to display and check user interface (.ui) files
 created in Qt Designer. The interfaces can be shown in a variety of
 different widget styles to ensure that they display correctly in any
 environment.
 .
 The Qt Designer itself is in the package qt4-designer.
 .
 This package is part of the KDE Software Development Kit module.