I had no clue there were indie releases for the TG. This is pretty damn awesome. What other indie releases are must haves?
I'm going to go order Insanity right now!
In my opinion, all of them are 'must haves'. :-" I am all for supporting home brew developers, so unless something released was proven garbage put out solely for the purpose of scalping Turbo lovers, then I will buy a copy and recommend others to do the same. That said, I personally got far more enjoyment from Mysterious Song and Pyramid Plunder than I did from the other indie games.
I believe that Good Deal Games still has new stock of Mysterious Song and most of the other indie releases as well.