Long time lurker, finally registered....
Although I am not a fan of the name change, I could see this coming and even Apple hinted at it with Lion, and it only makes sense from a business standpoint.
After 10.5, most of the new features pushed in 10.6, 10.7, and now 10.8, are aimed at blatantly broadcasting the similarities and ease of use between all apple products.
This is likely just a marketing scheme, to continue pushing more people that have only owned apple products in the form of "i" device into purchasing a Macintosh that likely otherwise they would not.
If you have been to an Apple store before 2007, and been to one lately, I don't have to explain the demographic change in apple's customer base....
🙁