I thought this was worthy of a public note because it involves the use of an unexported function.
Htmlwidgets in R are a hot new way to visualize in R, but their use in Trelliscope is a bit of a mixed bag.
The key is to use plotly:::toWidget in the panelFn. Ironically this will make it so R studio won't render the output right, but the panels work in Trelliscope itself which is nice. There is a bit of a white space issue, but it has a really killer and responsive 3d plot, a ggplot translator, and some interesting map plot options, so I am pretty keen to see if it will simplify some stuff I am working on. I figured this audience might want to know of their options.
A couple ggplots plots did seem slow though.