Call me crazy, but isn't "testmode" quite simply booting windows ce off of your sd card so you can have access to the drive to edit files located on the drive?
AFAIK, no. There's not nearly enough stuff in the testmode to have full WinCE environment.
I didn't mean to say it was the full wince environment, just that it provided a startup resources to bring the unit to a gui interface, and provide the functionality for touch interface, copy/paste function and some test functions.
People were saying you could boot into this test envirment and change the ram usage ratios, when in fact I believe this test mode is a simple boot disk, and any changes made while in test mode, short of rewriting files, do not affect the the unit, ram usage or otherwise once its booted back into its installed envirment and os.