There is speculation at applelegal.com that the 40GB HD in the Mini may be a 5400rpm drive based on its model number (http://www.applelegal.com/other_comments.php?id=205_0_7_0_C):
Can anyone confirm this?The problem is that ST940110A is not in Seagate database, but obviously this corresponds almost perfectly to Seagate ST94011A (a zero is missing in between 1 and A for a perfect match), and it leads me to believe that this is essentially the same drive customized (OEM) for Mac mini -- which means that the drive should be a 5400 RPM notebook drive.