Gym Technik says they were built for Blackberry, but are now on the iPhone "due to popular demand":
Gym Technik is an innovative online service that uses the lastest in cutting edge mobile technology to connect your iPhone to your fitness routine. Members of this service can define their entire workout routine on the Gym Technik website, and when at the gym - The iPhone, pointed at the Gym Technik mobile website, allows for tracking of exercise stats in their routine, visual exercise guidance, and references to previous workout stats. All of this information synchs automatically to the members' web account where they can view their progress on informative charts and graphs and optimize their routine as necessary.
So, if you're a switcher and want to bring the service with you, or just looking for something to help keep you on track with your workouts, this might be work a look. Let us know!
More pics after the break...