Task description frequently contain screenshots and images to make the task clear. It's currently supported through attachments but it would be more convenient if images can be pasted (ctrl+v) directly in the task description editor. The idea is then that the images is displayed inline between the text.

I see that the current editor supports some basic HTML. In Teamwork.com it works as follows: If you paste an image it's directly uploaded to S3 and while editing the text it just shows as a hyperlink to the image. Once it's saved the image is actually rendered.