it's still much more expensive than ShiVa that has basicly the same feature set like running in the web browser etc, plus its native development platform is windows. wait for 1.6 which is to come soon, it will surely kick ass. players for linux and iphone are planned for this summer, too, and, if they manage to acqire licenses, any major gaming console will be supported.

Check out ShiVa/Ston3D - LUA doesn't bite