Hmm, it's taken me a week, but I have found something that's worse with MIB II that the older model.
Firstly, whilst I do prefer having a proper USB socket rather than a proprietary MDI socket (for the ease of swapping phones and units over via their default cable), one of the advantages of the MDI socket what that when I connected my Ipod touch (with the lightning connector), all my music videos and movies on the Ipod would play through the screen. I think that's because the MDI socket contained the electronics and licencing from Apple for it to work, but the USB socket appears to be just that - a USB socket with no digital rights authorisation. Looks like I'm going to have to rip all my videos and port across to one of the SD cards

I've also noticed when playing a video from an SD card, whilst it plays fine, the image is very dark (the shadows are pure black), and there doesn't seem to be an option to adjust brightness, contrast and colour like on the earlier unit ?
I suppose with all the improvements, something had to give ?