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!"
Just what Intel based CPU should the iPhone use? An Atom? You'd need to carry around a battery bigger than the iPhone itself, on some tether, in order to have a decent battery life. But, I guess, that'd solve the removable battery problem...
ARM's one and ONLY problem is that it's not x86 compatible. Which is only a problem if you care about x86 compatibility.