The rgl R package allows to plot interactive 3D figures and to save these figures in a html document (with the writeWebGL() function).
rgl
writeWebGL()
I would
It is possible if you transfer the Powerpoint presentation (or, even more R-ish, use beamer/latex), and embed the 3D-plot as described in Luke Tierney's article
http://homepage.stat.uiowa.edu/~luke/R/misc3d/misc3d-pdf/misc3d-pdf.pdf