It appears that my MiniWireless boards did not ship with a bootloader installed (or at least I couldn't get them to work). I reflashed the bootloader using the Duelimanove w/ ATmega328 option using a Pro Mini as the ISP. This required the the 100k fix mentioned below. No other modifications required (such as the recommended 10uF cap on reset on the UNO from the Arduino site). It did not work without it.