Coming out in the spring, Pedal Brain will be able to sync cycling information directly to the iphone or ipod touch:
Cycling apps are nothing new to the Apple App Store, but this hardware/software combo called Pedal Brain is the first to provide convenient ANT+ wireless device support.
As a quick primer, ANT+ is a wireless standard used by cyclists to measure and analyze their ride performance using a variety of wireless devices. It’s been around for a while, but until Pedal Brain, there was no way to sync it up to an iPhone of iPod touch. Now there is!
Read more at Gizmodo.com