Have to wait for the importer module, to define the proper physics. I am waiting for this also. Also when characters can walk on any object besides the terrain.
Intel(R) Core(TM)2 Quad CPU Q6600 @ 2.40GHz, 2400 Mhz, 4 Core(s), 4 Logical Processor(s), 4gb RAM, Nvidia gtx660, Windows 7 Pro 64bit