It turns out that the raspberry pi has hit another hardware snag, with a forum post outlining the issue here: Fixing 1.8V power rail design error Essentially, there is a 1.8v filter pin on the ethernet/usb chip that has actually ended up being connected to the 1.8v rail, this can cause the ethernet chip to supply power to the whole 1.8v rail instead of the linear regulator that is supposed to be doing the job, this in turn makes the ethernet run hot.
Not a complete show stopper but could certainly be compounding issues that are prevalent in the current usb drivers, current work on the usb drivers and possible fixes are being discussed here.
Unfortunately, the usb fixes have not fixed the issues I am having with my webcam, luckily I have the mini210S coming to experiment with.
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