The new certificate and key view widgets are now merged into gnome-keyring master. They live in libgcr: a library for crypto UI widgets and crypto helpers.
The goal of the widgets are to have a simple mode, where only the information needed for a user to uniquely identify a certificate is displayed. The widget can be expanded to show all the details about the certificate.
Simple mode, with a dialog border.
At GUADEC Matthew Paul Thomas helped us design a nice certificate selector, and I’m working on implementing that.