Gnome as a whole is ramping up to version 3.0, and there have been some big changes in Gnome Keyring.
The new Secret Service DBus API is used to store passwords. We took care to change this out in a backwards compatible way, so applications previously using Gnome Keyring needed almost no changes.
Using DBus is more modern and all that, but the best part about this is that the KDE guys are working on implementing the same API. In fact we designed it together.