Im trying to think of any other manufacturer of anything in the world that does this and all I can think of is maybe a high-end Swiss watch maker like Patek Philippe.
But at the same time, when Apple decides you don't need a feature, come hell or high water, you will NOT get it!
I've just been issued an iPhone 3G from work, and I'm somewhat hard of hearing. I simply can not hear the email received alert on the phone when I'm more than about 2 feet from the phone. That's the main thing I use it for when I'm out of the office. And you simply can NOT change that tone without "Jail Breaking" the phone - and since it's not mine, but my companies, if I do Jail Break or otherwise try to hack the phone (which is something I'd sort of like to try), it's grounds for termination.
I've contacted Apple, and requested (practically begging) this feature. I've never seen a data phone that wouldn't allow you to assign different tones to different alerts!
Mark
That is a down side to Apple sometimes. That and their legal department.