I converted many of the #FunBrainyApps that I built for the landscape iPad to a smaller footprint version customized for the portrait iPhone, still entertaining, but quicker to play if I find myself in wait mode while out and about. Perhaps one of these will brighten your wait times too?
Sudoku Puzzle Games:
a3DPicto9x9
a3DPicto16x16
Puzzle Games:
a3DEscapeByMatch
a3DFillCubeByMatch
a3DFlipToPic
a3DMatchInFlash
a3DMatchInMaze
a3DMatchOrBounce
a3DPeelMatch
a3DSlideToMatch
a3DTrailToMatch