Well it looks like they did it. First Sony did it with the PSP with the constant firmware upgrades to fight Hax0rs (hackers), and now Apple have released firmware which takes away a lot of features and adds very little, in the hope that it will be enough to get people to upgrade. The problem is, is they added a feature that most hackers wouldn’t want anyway. The 1.1.1 firmware adds the wireless Apple music store, which lets people buy music on the go. If you are a hacker you would probably just torrent all your music anyway, so who cares about that feature. Give them something they want Apple!
For more info, well you can look at any tech blog on the tech, but I recommend Gizmodo’s Blog.