Do you need a Macintosh computer for high-quality, satisfying digital photo management? Macs include the excellent iPhoto for no extra cost, and if you want to spend money the Aperture photo-management application is first-rate. Naturally, everyone asks "How do they compare to Adobe Photoshop?" The answer is they don't. They are strictly for managing and editing digital photos; they're not full-blown desktop publishing suites. So what does Linux offer for the ace digital photographer who doesn't want to splurge on a Mac?