I have realized that old iPods have firmwares specifically for Either Mac or Windows, Wherein connecting a Mac iPod to a Windows Computer requires you to restore while doing so vice versa disables you to update your iPod. But now the new iPods are both fully compatible with each other, making this more convenient...... For jailbreakers. Example: It is near to impossible to Jailbreak or downgrade 1.1.3 on your Mac. Just use a PC instead. I have learned this while knowing I am unable to jailbreak 1.1.3 on my mac, so I do this on my dad's computer. This information is quite useful to the many zealous Mac jailbreakers, who have PCs.