If any of you would like to be able to extract the base OS out of your F-Series unit, add files to the OS image, or modify the system registry, I've created a tool to automate the process called avic-modder. I've added a wiki page with the manual instructions (if you don't want to use my app) AND a link to my app. Here's the software link again here:
http://www.mediafire.com/file/zmzymzgzg ... r_beta.zip
All you need to do is copy your WINCEIMG.BIN file from you "My Flash Disk" folder to your PC and then open it with this software. The rest should be obvious. If it's not obvious, I'll add some more instructions in here.
This has allowed me to customize my unit so I don't need to use testmode to boot a custom setup. This means if you don't like having your unit reboot every time you start your car (testmode annoyance), this can help. If you'd like to include new drivers into the OS image, this can do that too. It can also help you launch Leetlauncher or something else at boot, even with no SD card inserted.
The output is a new WINCEIMG.BIN and WINCEIMG.CKS file to use via the service menu to update your Windows image.
REMEMBER TO ALWAYS BACKUP YOUR ORIGINAL WINCEIMG.BIN and WINCEIMG.CKS FILES IN CASE SOMETHING GOES WRONG!!!