Let the hive mind of Engadget get that for you.
"I own an iPhone 3G and I'm looking for a decent speaker / alarm clock for it. I am going to listen music in a mid-sized room, so I want nice quality speakers with solid bass. I also want to use it as an alarm clock, so it would be great if there is such a feature. The price can be low-mid to mid-high range. I was looking at the Klipsch iGroove SXT; it's powerful, slick and the reviews are good, but it doesn't have an alarm clock feature. It's no deal breaker if I can set it up from the iPhone, but I'm not sure. Thanks!"
What I don't get is why this is all of a sudden news. There are quite a few regional providers that have been offering this for a while. Not to mention, Helio, who has it nationwide and has been doing it since last summer. It is nice to see the big guys finally starting to catch on to what a lot of people want.