yeah like fastlane said. If you want to add to 3DGS just get the freaking SDK. 3dGS [as is] is perfectly suitable for game development. There becomes less and less that needs to be added to it every few months. If you have a suggestion take it to the Suggestions forum. But nobody want to hear "I'll only buy your product if you do blah blah blah" .
I'm not trying to be a jerk...but seriously.