Suspicious Package 1.3 - Quick Look plugin to preview contents of installer packages.. (Free): "
Suspicious Package allows you to preview the contents of a standard Apple installer package without launching the Installer. Just select the icon in the Finder and select Quick Look. You can click individual folder names to see their contents, or click the Show Contents button to see all content at once.
- Fixed compatibility problems on Mac OS X 10.7.3.
- No longer supports Mac OS X 10.5 or PowerPC.
Mac OS X 10.6 or later.
(Via MacUpdate - Mac OS X.)