SMHeartLink and the iPhone Apps

I was checking out the Training Peaks site and ran across a very cool (well, it looks cool) iPhone application that monitors Power, candance, speed, HR. It touts that it works with with the popular brands (polar, gar, cyclo, ) with the help of a little wireless bridge. Hummmm…

http://home.trainingpeaks.com/profiles/smheartlink.aspx

I was wondering if anyone here has tried one, knows someone that does so I could pick their brains or get more info.

thanks!
J