If you check out the updated Optitrack Site, it looks like Yoshi and the Optitrack folks got together and Optitrack will be offering Yoshi's software along with their cameras--compare Yoshi's 05/05/06 Poser sample: http://www.geocities.com/mocap_is_fun/ (scroll down to the 05/05/06 sample) with the video of the new interface at Optitrack: http://www.naturalpoint.com/optitrack/products/videos.html (scroll down to the "full body" video The interfaces are almost identical, but the movement of the character is absolutely identical. I'm really not surprised--tho I am very pleased--with this development. I've been salivating over Yoshi's updates to his site since the Spring, and actually called Optitrack months ago to ask them about software solutions, and the person I talked to made a reference to somebody who was working on a bvh solution, so, tho they said they didn't have any plans to produce software, it seems like Yoshi was at least already on their radar. Anyway, if they can keep the cost down to around $2000 or so for a complete system, it's going to revolutionize 3D animation as we know it. I know it will revolutionize my life! --Tim http://www.auroratrek.com