Wow, this is quite awesome.
I love unity (I used it for a school project, was quite fun to work with).. I just never had to urge to buy it as when I bought A5, then 6 back int he day I felt like I wasted my money... Not because the engine/tools were bad, but because I didnt have time to use them.

But now that Unity AND 3dgs are free, this is great! Especially for students and schools! Yeah there is a competition between 3DGS and Unity, but they both have their advantages and disadvantages so I can see indie developers and students choose each tool based on their needs with out having to feel the pain in their wallets.

It really opens the doors for more people!