Emacs incremental search uses a completely different approach. If you haven't seen it, it's worth having an emacs user show it to you. Granted, that feature is not enough to make emacs my primary editor, but I do miss it.
--mkb
On Dec 25, 2011, at 1:12 PM, Allan Odgaard wrote:
The main reason that ⌃S is not among the keys you can use is that the search box is a standard Cocoa text field and a frustrating amount of custom code is required to grab the ⌃S/⌃⇧S keys (to the best of my knowledge) — so given that ⌘G is already standard, this will have to do for now.