clicking/ticking sound in video (touch 4g) with Wifi turned on.

Is anyone on here have the clicking/ticking sound in video on the new 4g touch with Wifi turned on?

I have two new touches, an 8GB and a 32GB and they both do it. I'm considering taking them to get exchanged, but I wanted to see if anyone else was experiencing it, and what they've done to deal with it (aside from turning off Wifi everytime they want to shoot video), including returning/exchanging.