Oooh, yes! I'll have a look at it.
I should note that what I really need is a plotting solution—it doesn't necessarily have to be a ggplot extension. Something like an htmlwidget that goes straight from data to D3 could also work.
Sorry @veegpap, could you please point me to where the code for it is on Github? I'm having trouble finding the repo associated with it. Never mind, found it!