So I have committed a huge running sin, I bought an mp3 player/acceleromator. The Nike/Philips MP3 Run.
It is awesome!!! I tested it tonight during my speed workout. It plays mp3's while tracking your speed/distance. Pretty sweet. I took it to the track and calibrated it and it appears to be accurate.
Warm up 1 mile
1 mile hard (7:29) Yuck
1/2 mile Easy
1 mile hard (7:23) Double Yuck
1/2 mile easy
1 mile hard (7:07) Slightly better
1 mile cool down
Along with the mp3 player and run stats I can automatically update that data to a nike online training log. I am going to have fun with this :)