I think it's unbelievably original. I loved the previous version, now with the drag/drop system I can say it's a perfect beauty, and only needs more levels. The AI is top notch as well and provides a challenge.
Nice entertaining strategy, unfortunatelly has a bug (at least). I got all cells, but a blob of 14 green cells got stuck "while travelling" and even if I have all other cells at max, I cannot pass the level!