Looks like Dell might be clearing their inventory to make way for new models (the Android Venue, perhaps?). The Streak, while labeled a tablet, is unique because its 5″ screen size makes it small enough for use as a phone, as it can easily slide into a pocket. You could think of the device like a small tablet or a large phone. Previously priced at $580, the AT&T 3G-capable device is now being sold for just $400 for the 16GB model, with a ship date of early January. If you’ve been holding out, this might be a good time to buy.