Vince stumbled upon this DIY kit while searching Google for Voltron wallpaper. This do-it-yourself touchscreen kit is available on eBay and said to work with both the Acer Aspire One and Asus Eee PC 900/901.
You can buy it now for $95.95 coupled with a $25 dollar shipping fee. There’s no soldering required and it comes with drivers to support Windows, Mac OS X and Linux. Touchscreen Minesweeper? Count me in.