When navigating around Flash Builder using alt-left/right in OSX, the cursor always skips past underscores, periods and colons, rather than recognising them as word breaks. For example:
protected var _myVar:Boolean;
placing the cursor at the end of 'Boolean' and hitting alt-left will move the cursor to in front of var, rather than in front of Boolean. Placing the cursor at the end of _myVar and hitting alt-left will move the cursor in front of var as well, instead of the start of the variable name.
placing the cursor at the end of 'myProperty' and hitting alt-left will move the cursor to the start of myVar, rather than recognising the period. If there are several properties chained, it skips all of them.
What can be done about this, because although a small problem, it is something I do all day, every day and so the increase in productivity would be pretty big.