More on getting filters to work on iPhone (cacheAsBitmap?)

The cacheAsBitmap property is somewhat similar to what I had to do to get the filters to show up on iPhone GPU mode:
[URL=“http://www.kirupa.com/forum/showthread.php?370075-AIR3-on-iPhone-filters-doesn-t-work!-!-BIG-HEADACHE&highlight=”]http://www.kirupa.com/forum/showthread.php?370075-AIR3-on-iPhone-filters-doesn-t-work!-!-BIG-HEADACHE&highlight=

But I played around with that property yet filters still don’t show up.
I even tried to put child objects (with filters) inside a parent object (no filters but cacheAsBitmap = true), no shows.

Would someone have more insight on this?