External Engine Interface

I’m new to the forum. I was thinking of a way of creating levels for a game that I could play through without exporting from a 3D package and importing into Microsoft XNA. Then it dawned on me that Blender is open source. So I went to the website and found the link to the External Engine Interface, which is just the capability I was brainstorming about. I have two questions.

  1. Was this project ever implemented in a previous Blender release?

  2. If I’m able to successfully create a game using a plugin for XNA within Blender to render the levels, am I bound by the GPL?

Thanks.

  1. I do not know
  2. If the final game contains even one piece of GPL it turns into GPL. So be careful if there aren’t conflicts with other licences.