They specifically advertise the ability to change boot screens. One would think that they would include a GUI to both flash the chip and change the boot screen.
I wonder, however, if flashing the chip erases all of those changes to the bootscreen.
I wouldn't help much if I sold these mods and changed the boot screen to bGT mods (or whatever) only to have it default back to the hideous "YiHi" when the chip is upgraded. Hopefully they can address this issue so that the boot screen will not be overwritten when the chip is flashed.
Yes, the logos are in the upgrade so if a customer upgraded from a file besides the one you provided with your logo whatever (YIHI) was in the upgrade would be the boot logo.