Since this activity is new, you'll probably find that it does help with weight loss for the first month or so. But after that, your body quickly starts getting used to it and the additional activity becomes like a normal part of your day. At that point, you'll find that extra exercise is what you need to challenge your body and help keep the weight loss going.
Although I wouldn't count it as exercise unless it's keeping your heart rate up in the cardio zone for at least 10 minutes at a time, you might need to eat more to account for it. Here's an Ask the Expert that explains how to figure that out: www.sparkpeople.com/community/ask_the_expe
Hope that helps!