Like the elegant comment before, I can't believe how hard it is to find any current photo browsing app that sees subfolders. I had been using PhotoGrid, but it doesn't support RAW (CRW) files, so the search was on.

Phoenix Slides does what it says on the box without fuss and bloat and has basically saved the day. My new workflow is DateTree > PhoenixSlides > PSD. And once again iPhoto can kiss my squirrel!!

Huge thanks to the developer, well may you prosper! *applauds*