when you installed the emulator did you also install the the ARM EABI v7a System Image from the API15 SDK installation step? When you define the instance in AVD you should then be able to select the API15 level and get the right image
So after the reboot, I can not get the proper density. I've even set up manual 250 density and the actual screen/pixel size is still smaller than an actual Kindle Fire. I guess I could just create a new AVD based on the reported screen sizes. Any idea?