A little friend showed up yesterday on Boot Camp-equipped Intel Macs and PCs with Apple apps (iTunes, Safari, QuickTime) installed -- an update to the updater that updates our updating. Apple Software Update 2.1.1 for Windows is out... there's no download page at Apple, so for now the only way to get your hands on it is via the existing Apple Software Update on your machine.
What does it do? Well, it improves security and overall reliability. Recommended for all users. Keeps your refrigerator smelling fresh and can be used as a dentrifice ... wait, no, sorry, wrong stuff. If you do install the update and you notice any changes, positive or negative, do let us know.