A couple months ago I tried an SD version of either MioPocket or one of Jerry's Skins by inserting it into the Moto and it did not work so as you say the .exe file needs to be just right. Moto did not even recognize the microSD card. One can only wonder what the purpose of the SD slot will be.Moto does not use the same file structures as many CE devices. I have not found a single .xml file on it. I am not a programmer so I just grope around.