My Biggest Moan with Darwinia was the gesture control system, because although it sounds cool, it certainly didn't add anything to the gameplay and more often than not I found myself frantically failing to draw a gesture in the heat of battle. Well Introversion has rebuilt the interface with a more traditional approach and released a New Demo and Patch incorporating the new design.
Originally I was just going to give a link to the demo without playing it because I am busy with lots of other stuff, but that just isn't my posting style.
I love the new interface and the demo level is excellent too, providing a better tutorial that was in the first release of the game, and a far more interesting level to play on than any in the first release of the game. If the didn't have plans to make a sequel before I hope they do now because this is much better (level isn't filled with Red Virus needlessly and it has an interesting objective).