After many months from its announcement finally Adobe released a beta version of its online application for managing and editing images: Adobe Photoshop Express.
You will need to create an account no matter if you have an adobe account (very strange... maybe I made a mistake).
The great thing is that it works in Safari, Firefox and IE no matter if you use Windows or Mac based computer.
It also makes easy to upload multiple images at the same time and the editing capabilities are really cool.
By placing the mouse cursor over an uploaded image gives many options (img 1).