Manufacturer Certified via eBay offers the refurbished ASUS Taichi Intel Ivy Bridge Core i5 Dual 1.7GHz 11.6" Dual-Screen Laptop, model no. TAICHI21-DH51, for $539.99 with free shipping. That's $37 under our mention of a new unit from four days ago and the best price we've seen for this laptop. (It's also $140 under the lowest total price we could find for a new unit elsewhere.) It features an Intel Core i5-3317U 1.7GHz Ivy Bridge dual-core processor, two 11.6" 1920x1080 (1080p) LCDs (one of them is a touchscreen), 4GB RAM, 128GB SSD, 802.11n wireless, Bluetooth 4.0, dual 5-megapixel webcams, 6-cell battery, and Windows 8 Home Premium 64-bit.

Note that no warranty information is provided.