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!"
"Correct me if I am wrong, but don't you still have to maintain the prepaid account to use the phone? Or was this just some corporate bs to have it? Rergardless, why have an iphone if you dont activate it? If you activate a prepaid sim and change it to your postpaid.. you need to reregister the device."
I have my iPhone activate as prepaid. I have no contract and I can cancel at anytime without penalty.
Right, but will it continue to work after the month is up and you dont pay?