Adobe has brought Photoshop Elements 10 and Premiere Elements 10 to the Mac App Store in the form of special “Editor” editions. At $80 each these are $20 cheaper than their regular editions, but lose things like the Elements Organizer, support for case-sensitive HFS, and in the case of Premiere Elements​, any Smartsound functions. As the Editor tag implies, both programs do retain all editing options.
Photoshop Elements 10 Editor requires at least OS X 10.6.6, and is a 1.21GB download. Premiere Elements 10 Editor also requires v10.6.6, but is a significantly smaller App Store file at 924MB. Either piece of software is available in English, French, German, or Japanese.