Hi Ian,
Yes, I totally agree. A USB 'option' would be good for me too - I just have a bit of a hangup because I used to have PowerFl*rm Core, which relies on a usb stick for configuration and updates. Mine wouldn't read from or write to any of my sticks, yet they kept insisting the problem was with my sticks (what?...all of them...?), not their unit - which I disproved by using my sticks on someone else's unit - so back it went for a refund. With the Fl*rm, there was no way to see what was going on inside except through the USB port. At least with the PAW you can look at the logging and track files - provided you can get them off the Pi of course.
As you say, Lee is looking at updates via USB, so I'm sure he will consider this at the same time.
Regards
Peter