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!"
I guarantee I-mate will not give a 6.5 upgrade to these phones. Guarantee it. I also almost guarantee the "Centurion" will never make it to production.
Why wouldn't they? And I personally wouldn't mind the size of the 810F. I don't know how often I would need to take advantage of the water-proofness though, I'm not usually using my phone in the shower.