Running or walking with the iPhone 3G S

You might use or be familiar with the Nike + iPod Sport Kit, which lets you use an iPod nano to track time, distance, pace, and calories burned when running or walking (in Nike or other shoes).

This kit also lets you hear real-time, spoken feedback through your iPod nano about your workout milestones.

Well, according to a cnet.com article posted two days ago, the new iPhone 3G S now works with this kit, too.

Do you run or walk with an iPod nano? Would you run or walk with an iPhone 3G S instead? That seems too cumbersome to me. The beauty of the iPod nano and other small MP3 players such as the Sansa Clip is that they are tiny and fairly sweat-proof.

What your thoughts about this? Please leave a comment here. Thanks!