Leopard brings a surprise feature in NSTableView and NSBrowser.
It is now possible (and enabled by default, even for applications
linked under old systems) for the user to select a row of a table view
or browser by typing the first letter or letters of the desired row.
See - allowsTypeSelect and related methods in the two classes.
The feature is long awaited and welcome. But it should have been
mentioned in the App Kit release notes (it isn't), especially because
it changes the behavior of existing software. Believe it or not, I
actually have a case where the new behavior is undesirable. (It's very
easy to turn off, once you know that you need to do so.)
I have often complained (using the documentation comment forms) when
important information is given only in release notes and not copied
into the corresponding reference pages. This is a case of the opposite
problem: a new feature documented only in the reference pages, not
mentioned in the release notes!