Hints on tasks and on editors interfere
In the program below, both the editor and the task set a hint attribute, and only one is kept in the layout (the one of the task). I think the easiest solution for this would be to let hints on an editor set different attributes (tooltip and tooltip-type). This would also make it possible to say Hint "hint" @>> withDynamicHintAttributes "string" textField, which would create an editor with tooltip and hint.
import iTasks
Start w = doTasks task w
task =
Hint "Task hint" @>>
enterInformation [EnterUsing id (withDynamicHintAttributes "string" textField)]