An MP3 Player That Whips Your Heart

Exercise enthusiasts will enjoy this clever idea: due this fall, an MP3 from Yamaha called the "BodiBeat" that selects the song to match your workout needs:

Strap the player to an armband, and it monitors your heartrate. If it senses your rate is dropping, it'll queue up a faster paced song; should your heartrate exceed your target range, it'll pick a slower song to bring you back into the zone.

You'll have to run your songs through Yamaha's BPM (beats per minute) detection software before loading them onto the device, but other than that, the process sounds fairly easy to master. The BodiBeat also tracks your average pace, calories burned, and maximum heart rate; I assume this data gets loaded back onto your computer, so you can track your progress over time.

I'm afraid my MP3 would constantly be playing Flight of a Bumblebee...

-Wes