Other nice touches include: if you create a version of a picture in Aperture, it appears in iPhoto. And if you open an iPhoto library in Aperture, you still have access to the Effects tools because Aperture has added iPhoto Effects to the Add Adjustment popup menu.

A few terms have changed in Aperture to ensure continuity in this partnership: Masters are now called Originals; Metadata is now called Info; and Presets are now called Effects.

Well drill down into more of the nuances of the Unified Library at a future time, but for now, you have many new workflow options as a result of this union.

Apple added a new image-editing tool, beefed up another, and streamlined a third.