As one of its daily deals, Acer via eBay offers the factory-refurbished Acer 21.5" 8GB 3D Touchscreen LCD Display / Android Tablet, model no. DA220HQL, for $199 with free shipping. That's $51 under our refurb mention from a week ago, and the best price we've seen for this tablet. (It's also $149 under the lowest total price we could find for a new one.) When plugged into a PC, it acts as a 3D touchscreen monitor and when unplugged, it doubles as a 21.5" Android tablet. Features include a Texas Instruments ARM Cortex-A9 OMAP 4430 dual-core processor, 1920x1080 (1080p) 3D touchscreen LCD, 1GB RAM, 8GB internal memory, USB, HDMI, and Android 4.0 OS (Ice Cream Sandwich). A 90-day Acer warranty applies. Deal ends today.