With the release of the new AppWorld, I downloaded KaGlom onto my Storm, and have to say I'm addicted!
Took a small bit to get used to the interface, but have to admit it is really quite good on the Storm. It is definitely not one of those that you get the hang of and becomes redundant... it takes some work after a few levels.
I dunno how it works on Trackball devices... but it takes a LOT of screen tapping (no clicking thank god) on the Storm.
The only real criticism I have for it is the lack of an instruction/help manual. Some of the Puzzle levels drive me nuts cuz it can be rather interesting trying to learn how some of the not-so-obvious objects interact with the rest of the game.