I was in the nearby Wal-Mart Supercenter that's down the road from my office, and I saw two Muslim women, in full-length burqas (I guess that's redundant....it's not like they have summer length burqas that only go to the knees, and flash a little leg), with the hijab head scarf, but without the face-covering niqab veil. The hijab was rather tight, as normal. What stood out though was the fact that she had a Blackberry Curve wedged INSIDE her hijab, so that it was pressed tightly to her ear, enabling her to have a hands-free conversation.
I briefly considered taking a photo of it with my Blackberry (also a Curve, which is why I knew). However, that's kind of ballsy and brazen, even for me. You'll just have to take my word for it that it looked like the clumsiest Bluetooth headset ever. But, in the day of tiny cell phones, it sure does make it easy to hold, since you can't press it between your shoulder and ear like a regular phone.