Interesting article about not doing cardio training

Here's an interesting article that I found about focusing on just doing strength training and leaving cardio out of your routine. Check it out here.
If you ever done a kettlebell routine, then you will know how great a workout this is. I plan on reducing some of my cardio exercises and add more bodyweight squats, pushups and kettlebell exercises. I'll post back here on how the routine is going. Feel free to post your comments about the article here as well. I'd love to hear your feedback.