They're using a stronger alloy of aluminum, but it says nothing about the anodization. I assume type II anodizing is used on the iPhone/iPad. I'd be curious to see if they've switched to type III (hard anodizing), which is stronger and whose anodization process takes twice as long. However, I don't have high hope as the Sport models are priced low at $349-399 so why use better anodization than the more expensive iPhone models and not at least advertise this?
Yeah they mention the anodizing but nothing special about it.