Tanga offers the refurbished 0.87-lb. Hisense 8GB Sero 7 Pro 7" Android Tablet, model no. M470BSA, for $39.99 plus $1.99 for shipping. That's $3 under our April refurb mention and the lowest total price we've seen without rebate hassles. (It's a current low by $18.) It features a 7" 1280x800 touchscreen LCD, NVIDIA Tegra 3 1.3GHz quad-core processor, 1GB RAM, 8GB internal storage, 2-megapixel front-facing camera, 5-megapixel rear-facing camera, 802.11 wireless, Bluetooth, miniHDMI, microUSB, and Android 4.2 OS (Jelly Bean).
A 90-day warranty applies, but it's unclear who backs it.