The Chinese character "的" is being used here as a possessive; it just means that the iPad belongs to the "Administrator", which is the default account name for many Windows XP computers [1]. Because iTunes activates iPods, iPhones, and iPads under the current user account name, and because the default user account names in many XP installations is "Administrator", there are a plethora of devices with the same name: '“Administrator”的 iPad'.

So, the only significance of this name is that there are quite a few Chinese Apple devices in this sample. Perhaps they are over-represented in the whole dataset; it's hard to say without having the breakdown of Apple devices sold by country, as well as the entire dataset.

1. http://www.mydigitallife.info/unhide-the-administrator-accou...