'Only the Beta will be free' Yep. But the beta will render and save, so at least we get to try it without selling a kidney. And if a (for example) D|S to Bryce plug-in costs $20, how useful would that be to many people? So the deal is, try it free. You get to keep it. When the plug-in you want comes out, weigh up the cost/benefits and decide. That's the advantage of modularity. mac