[Pharo-project] About built in plugins

Hi, just curious..does somebody know why 'B3DAcceleratorPlugin' is built in into the mac vm ? SmalltalkImage current listLoadedModules #('B3DAcceleratorPlugin 2 March 2009 (i)' 'SocketPlugin 2 March 2009 (i)' 'FloatArrayPlugin 2 March 2009 (i)' 'B2DPlugin 2 March 2009 (i)' 'InternetConfigPlugin 2 March 2009 (i)' 'FT2Plugin 24 April 2007 (e)' 'MacMenubarPlugin 2 March 2009 (i)' 'LargeIntegers v1.5 2 March 2009 (i)' 'BitBltPlugin 2 March 2009 (i)' 'SecurityPlugin 2 March 2009 (i)' 'FilePlugin 2 March 2009 (i)' 'DropPlugin 2 March 2009 (i)' 'MiscPrimitivePlugin 2 March 2009 (i)') Saludos, Fernando