Yes, it would be pretty cool to see somebody knitting with eight or ten dpns.
Three or four circs also looks quite impressive
and will get you plenty of funny looks on the subway.
I slept through high school geometery, but the way it works is this:
when you use dpns, you are actually knitting with segments of a circle. The more segments, the closer you get to an actual, angle-free circle.
So knitting with circs is tantamount to knitting with an infinite number of dpns.