BrandSpankingNew

The public beta of Adobe Lightroom is available at Adobe (formerly Macromedia) Labs. You need a macromedia account to download it. It's pretty much Adobe's answer to Apple's Aperture, based on a typical photographers workflow: with Library, Develop, Slideshow and Print modules.

• Library - importing, sorting, tagging, viewing
• Develop - basically colour correction, with Photoshop integration for the advanced stuff
• Slideshow - self-explanatory
• Print - Page layout & printing options for contactsheets or single prints

All-in-all pretty intuitive and easy to use. Supports RAW files and can convert images to the DNG (Digital Negative Format) on import. Photographers can customise the workspace using the "innovative Identity Plate feature" - which basically means you can add your logo to that slideshow of wedding shots. Here's a screenshot (using images from my mobile), and Adobe's pitch:

Adobe® Lightroom™ Beta is the efficient new way for professional photographers to import, select, develop, and showcase large volumes of digital images. So you can spend less time sorting and refining photographs, and more time actually shooting them. Its clean, elegant interface literally steps out of the way and lets you quickly view and work with the images you shot today, as well as the thousands of images that you will shoot over the course of your career. Because no two photographers work alike, Adobe Lightroom adapts to your workflow, not the other way around.