I bought a watch phone off that spaw of satan(tm) Ebay a couple years ago. It was the CECT W09, waterproof (to an extent that you could wash your hands or walk in the rain) and felt like I was carrying a toaster around on my arm.
This one looks the same, but costs three times as much. The thinnest watch phone I've seen is a not so svelt 14 mm. I hate having that hanging off my arm. Get the thinkness down to 7 mm and I'll give one a try again.
Yes, it's finally here: A watch with a built in (video) phone.
Full review here.
Almost makes you wish you'd not bought the jesusfone now doesn't it? 
