The real Filler is finally on the iPhone! I launched Filler in January 2008 with a simple idea: fill 2/3 of the screen to advance. Tons of clones have followed, but no clone can come close to the real thing!
Most strategies involve creating balls at the top of the screen and using them as a shield while they drop. While developing Filler for the iPhone, one thing I noticed was that my fingers would often get in the way (I have fat fingers). In early test builds, I was actually playing with my phone upside down! That made no sense, so we did the sensible thing and reversed gravity.
I hope you'll enjoy Filler for the iPhone!