[quote="cairnswm"]To the best of my understanding the .jad file is used to move to the phone. When opened it automatically downloads the file ]

I don't know for sure, but I have never edited a .jad file ( can you?? ) and as long as I upload both .jad and .jar file to the same location on my webserver I can use either to download the MIDlet to my phone. When I use the .jad file it shows details about the game I am about to download like Game Name, Author, file size etc before asking you whether you want to install it. While if I just download the .jar file it just says "file size unknown, do you want to download it?"