iPhone opens up Bluetooth for data.

WildNahviss writes: Apple has loosened its tight grip on the iPhone and allowed a third party to develop a health device that exchanges data with the iPhone and their hardware. ( http://bits.blogs.nytimes.com/2010/10/11/body-sensing-comes-to-smartphones/ ) Is this a start of a trend for Apple that will relax constraints on non-audio Bluetooth use, or is this an exception? Does anyone know of any other devices for the iPhone that allows non-audio Bluetooth transmission of data, or is this the start of a new era for the iPhone?