I'm going to take a random stab in the air and say we are about 70-75% complete with the Conversion to 2Geom.
Things that still need done: - NRRect/NR::Rect need converting to Geom::Rect or Geom::OptRect - Filter needs to be moved out of the NR namespace maybe namespace Inkscape{ namespace Filter{ }} - sp-gradient.cpp & sp-pattern.cpp have deeper than normal libnr connection functionality will have to be moved out of NR or replaced - Include 2geom files instead of libnr files, simple replace and see if it compiles - Integer versions of Rect , Coord , etc
Please see http://wiki.inkscape.org/wiki/index.php/CheatSheetForConvertingto2geom for a general guide for converting. If you have problems or questions please feel free to ask on here or in the channels on Jabber or IRC.
Joshua L. Blocher verbalshadow