Confused Flash Drive

This is an odd product, i'm not really sure what it's trying to be. It's a normal flash drive with a built in mic, when it's plugged into a computer an icon appears which allows you to place VOIP calls. Now, give this thing wifi and make it a cell phone in wifi hotspots and I get it. But if you're at your PC, you can just use that to make VOIP calls, I don't see why you need to speak into your flash drive. Maybe i'm just upset that it doesn't work on Macs yet.
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