Respect These Roles!
When developing a Mac OS X application, you can specify what extensions your app can open. Furthermore, you can specify, for each document type, whether your app is able to open that document for editing, or just as a viewer.
So why is it that I can not utilize this differentiation in the Finder? For any given “.jpg” file, why can I not choose to view it (using Preview.app), or edit it (Adobe Photoshop CS2.app)?
The experience could be simple enough: double-click to view, triple-click to edit. Command-O to view, Option-Command-O to edit. Think of the time you would save that is otherwise spent tediously dragging an image to an icon in the Dock.
With the capabilities now built into the core of Mac OS X, the “Open” command just doesn’t cut it. I Demand Better User Experience.