Actually, iFly is part way there now. iFly already depicts 45 degree Procedure Turns in anatomically correct form in IAPs. When the PT is designed as a Hold, iFly does not do that ... yet. That seems like a less than giant leap from 45 degree PT's, plus it should have a smidgeon of logic to depict the FAA approved entry procedure. Then once a the Holding PT is developed, then it shouldn't be too tricky to make Missed Approach Holds appear in iFly.