eBay with Acer has the Acer DA220HQL 21.5" All-in-One Touchscreen Desktop PC for $180 with free shipping. Can act as a stand-alone AIO or a full-HD monitor. Android 4.0 installed.
TI OMAP 4430 Dual Core 1GHz, 1GB DDR2, 8GB HDD, 1W speakers 21.5" multi-touch LCD 1920x1080, MicroSD, 1.2MP webcam
Deal has expired