The cursor control while editing a formula in Google Spreadsheets on Mac OS X is maddening!
Left and Right move the cursor one character left and right
Option-Left and Option-Right insert a cell location
Command-Left and Command-Right switch sheets
Control-Left and Control-Right switch Mac OS X Spaces
The emacs keys of Control-F, Control-B, Control-N, and Control-P all do unhelpful things
How can I go to the beginning or end of a line?