I used Protovis for about 6 months and then switched to D3 about 2 months ago. In those 2 months I reimplemented everything that I had built in Protovis, cut do

I used Protovis for about 6 months and then switched to D3 about 2 months ago. In those 2 months I reimplemented everything that I had built in Protovis, cut down on complexity and lines of code, and have not seen its limitations (and I would consider my use cases extreme). There have been core design changes to the library that have given it this ability. This page - http://mbostock.github.com/d3/tutorial/protovis.html http://mbostock.github.com/d3/tutorial/protovis.html -demonstrates very well how impressive the author and library is.