Aviary Phoenix, a really powerful online image editor, used to charge $US25 per year for private online image saving and other select features. As of yesterday, though, the Phoenix editor's gone entirely free.
What the unlocking mainly does is remove a few minor annoyances that free users might have encountered before. You could always save your images and project files on Aviary and download them, but they were viewable by the searching public. Adding a personal watermark was also a paid-only feature, and all the tutorials weren't accessible — but now all that is gratis.
Those who paid for Aviary accounts in the last 30 days will get a refund, and those previously paid in will receive a blue badge to mark their support, as well as first-round access to alpha features as they develop. It's heartening to see more high-powered web apps available for instant, full access when people need them.