New rev has USB hub - you could always connect usb wifi to do updates, then reconnect the expander - not optimal though..Bought myself a mistersetup with Revision 1 of the expander. Looking forward to jump into this new landscape of both mister and expander.
The lack of USB (and therefore wifi) makes me scratch my head how to set this thing up since I don't have anything using RJ45 LAN anymore. Not even my slim laptop has one. Maybe an ugly solution is the external USB hub people in this thread has used. Any hub in particular that's good?
Also a question to @invzim, what is the design philosophy behind the usage of HDMI interface between the devices instead of taking 240p from the GPIO? I assume one of the reasons is to keep the possibility to use dual ram?
There are a myriad of reasons behind the design choices made, ESD protection, user errors, ease of installation, clean design etc etc, but the bottom line for users would be that more colors are better. Not many games use 24 bit color, but even if it only has 512 colors total - you want to the output to be the right colors. With more bits, the accuracy increases.