I only did minor improvements today on Triple Touch for Android: I've modified the way the triangle is drawn to enable different colorization for the triangle corners:
The final effect is very feint however:
If you look closely, you can see that the lines ending in the green circle are now also a bit green. The effect is even less visible since the color transitions are now animated as well.
Besides these changes, I've did some minor performance improvements in conjunction with the text display. I am using the flash display list right now, but I should switch to bitmap fonts to improve performance further - currently I am rendering the texts on the CPU and upload the images to the GPU. That process is highly inefficient. However, I'll have to write some extra code to support bitmap fonts in my system before I can utilize these... but then additional effects will be pretty neat.
I am also currently thinking about adding some more achievements like "play 3 days in a row" to give an incentive to play again... probably not really going to improve the play rates though :(. I also should start porting the game to iOS... I think I'd get some more attention there. Astroroids for iOS was at least benefiting from the apple store featuring for new apps.