Thanks for the detailed review!
There is "some sound" in the game
It has sound for pipe placing, for buttons and for connection credit. Did you mean music or even more sound?
About "boring" - the puzzle part is to figure out how to get maximum possible score for each level.
Gameplay may seem boring, but on the other hand - so does Tetris, which is quite popular
I personally enjoy playing CityPipe so I thought someone might too...
Plus all levels are designed by hand what should give you some little fun out of pure "sightseeing"
Anyway, I would like to hear any ideas about how to improve it.
And, yes, you're right, I should have mentioned that EXE is PPC application.
And I probably also should mention that you can post your results on the website even if you haven't purchased the game.
Any more suggestion and ideas, guys?