Microsoft Store offers the 2.5-lb. Asus Transformer Book Signature Edition 64GB 10.1" WiFi Windows 8 Tablet with Keyboard Dock in Gray Metal, model no. T100TAM-C1-GM, for $329 with free shipping. That's tied with last week's mention and the lowest total price we could find by $10. Features include an Intel Atom Z3775 1.46GHz quad-core processor, 10.1" 1366x768 touchscreen LCD, 2GB RAM, 64GB eMMC, webcam, 802.11n wireless, Bluetooth, USB 3.0, and Windows 8.1 32-bit with Bing.