GREAT NEWS!!! I successfully ported sys and xip for 21109. I was going to orignally borrows calcu's from his kitchen, but decided to put in the leg work and got'r done. I had been searching all day and found the files from a polaris build on xda, and spent most of the afternoon and night doing this. Check out the screen shot.
Now have to start wading through all the posts since .7 was released, to try and implement and fix things for .8