Apple and Facebook have a bit of a history of not working well together. For example, iOS 5 has easy ways to share to Twitter but not to Facebook. Asked about it at the D10 conference, CEO Tim Cook said that he believes that Apple "can do more with them. Stay tuned." We would take that as a standard brush off, but when pressed by Walt Mossberg and Kara Swisher, Cook added:

For us, we want to provide customers simple and elegant ways to do the things they want to do. And, Facebook has millions, hundreds of millions of customers, and so, anybody that has an iPhone or an iPad, we want them to have the best experience with Facebook on those platforms.

The implication seems to be that while negotiations might be complex, the needs of Apple's users could trump any complications. Addressing Apple's relationship with Facebook, Cook called it "good" and said that although both Apple and Facebook have "their own way of doing things," he felt that he could work with Facebook. The exchange ended up with a repeated statement, "So stay tuned." It's hard not to read into that, hopefully we'll only need to keep tuned in until WWDC on June 11th.