IBike makes a number of products for cyclists that measure, rather than estimate, various cycling data. IBike offers iPhone- and iPod-based software apps (iBike Dash, shown here) and discrete power meter devices under the iBike Newton brand.
I agree, Rob. There's been a gigantic technology change in sports broadcasting. I can't even remember what it was like to watch a fotball game without stopping for a review. Of course, the networks love the review because they can insert a commercial or two while the refs are looking at the replay.
The bottom line is that sports have become more tough in terms of competition in the recent years. So apparently, yes, there is a connection between technology and people making use of it to do better in sports. However, there's a range of outdoor sports out there that don't necessarily need technology to make them even better. You could find some clues on AlarioBros. A lot of people find the resource appealing for what it has to offer them.
Focus on Fundamentals consists of 45-minute on-line classes that cover a host of technologies. You learn without leaving the comfort of your desk. All classes are taught by subject-matter experts and all are archived. So if you can't attend live, attend at your convenience.