I just tried my DevDuino V2 and it worked using the DevDuino_BatteryPoweredSensorTest.ino that Gregl provided earlier.

Here's my setup,

Mac Mini OSX 10.9.4
Arduino 1.0.5 software
Foca v2.2 for programming
MySensors 1.2+ (looks like I need to update it!)
And the DevDuino V2.

My Arduino 1.0.5 software is stock. I've not meddled with the boards.txt file or anything else.

I had to set the Board setting to Duemilanove w / ATMega 328 to get it to program.

Prior to programming I was also able to check the preloaded code that the DevDuino comes loaded with. It blinks an LED and spits out "Testing board, Test OK" on the serial/prog connection. I forget the baud rate but it was pretty high. I was able to run the Blink sketch by changing the "int led = 13;" to "int led = 9;"

Also, make sure you don't put the programmer in the wrong way around. I had to buzz out the ground pin first.

Once I programmed with Gregl's code I got garbage out of the programming port, I tried a few baud rates but didn't worry about it. Then I hit the Start button on the Vera Gateway Plugin, dropped in two AAA's and it picked it up as two devices almost immediately. Temperature is working, and the other device is coming up as Arduino Node 1.