Back on topic.
Are those tracks for the 8GB and 16GB DRAMs routed?
Eben said the SoC can address up to 16GB and there might 1mm spare.
If 8GB drams come out in a year or two will it be a simple change or a new PCB layout.
8GB/16GB 4B+'s, hmm PCB needs a mod for that resistor on the USB-C