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!"
"AT&T’s Text Messages Cost $1,310 per Megabyte
John Biggs on July 1, 2008
Today is basic math day at CrunchGear where we discovered that if 160 bytes of SMS data costs twenty cents then 1MB (1,048,576 bytes) of data would cost 131,072 cents, or $1,310.72.
Check out the prices for a text message plan on AT&T, the exclusive carrier of the iPhone 3G in the United States. AT&T wants twenty cents ($0.20) per text message if you don’t sign up for a plan. A text message is nothing more than 160 bytes of data. The max is 160 characters, and one character equals one byte of data. Great.
In other words, if AT&T charged data downloads at the rate they charge text messages downloading 1MB of data would cost you $1,310.72."
http://www.techcrunch.com/2008/07/01/atts-text-messages-cost-1310-per-megabyte/