As an avid Flickr user myself this sounds like something to look forward to.
Flickr doesn’t really provide you with any awesome tools when it comes to editing your photos, unless you count being able to rotate them as awesome. The good news is that they realize that the website isn’t perfect, so they’ve decided to team up with Picnik to provide users with some photo editing tools in a couple of months.
Users will be presented with an edit option on the photo page. Clicking it takes the user to a new Flickr photo edit page, with the Picnik tools integrated via an iframe. After editing, users can add the edited photo to their Flickr account or, if they are a Flickr pro user, overwrite the original.
… which reminds me I need to prolong my membership with Flickr, because I’m so happy being a Pro user there.