The Apple Store reopened and the new "product" is Aperture 2.

Apple claims there are over 100 new features in Aperture 2, including:

Image adjustment controls such as Highlight Recovery, Definition, Vibrancy, and Vignette
Retouch tool with soft-edged brush to remove unwanted elements from photos.
Next-generation RAW image processing for highest-quality images
Quick Preview mode for rapid-fire photo browsing
Simplified user interface that maximizes screen space and provides direct access to your iPhoto library from within Aperture
Integration with .Mac Web Gallery to instantly publish your photos, allowing visitors to view and download images.

If you are a recent Aperture 1.5 purchaser (between Jan. 1, 2008 and Mar. 14, 2008), there is a small upgrade fee of $9.95.